air research

Expanding the Village Green Project to Measure Local Air Quality

By Esteban Herrera, Gayle Hagler and John White

VG Station in Philadelphia, PA

Village Green Station in Philadelphia, PA

We have been busy for a few years with the Village Green Project, exploring new ways of measuring air pollution using next generation air quality technology put into a park bench. After testing our first Village Green station in Durham, N.C., we are now in the process of building and installing new stations with some design improvements and modifications.

The Village Green Project expansion is being made possible with the support of state and local partners across the country. Five new locations for stations have been selected through a nationwide proposal process open to local and state air monitoring agencies.

Today, EPA announced the partners and location for the new stations and held a ribbon-cutting ceremony in Philadelphia, Pa. for one of the five stations.

The Village Green Project has many benefits. It enables EPA’s scientists to further test their new measurement system, built into a park bench, and it provides an opportunity for the public and students to learn more about the technology and local air quality.

Each station provides data every minute on two common air pollutants – fine particle pollution and ozone – and weather conditions such as wind speed and direction, temperature, and relative humidity. The data are automatically streamed to the Village Green Project web page. You can access the data generated by stations as they come on line at As members of a team working on the Village Green Project at EPA, we have been doing a lot of coordination and tackled some difficult scientific challenges to get this project launched. But it is all coming together as we get the stations installed. We think it will be a great opportunity for educational outreach and to showcase some new capabilities for communities to learn more about their local air quality. These monitoring stations will enable communities to get information about nearby sources of air pollution that can impact local air quality.

VG Station in Washington, DC

Washington, DC

The five station locations being installed in 2015 as part of the local and state partnership are:

  • Philadelphia, Pa. – the station is located in Independence National Historical Park in Philadelphia owned by the National Park Service.
  • Washington, D.C. – the station is located in a children’s area at the Smithsonian National Zoological Park.
  • Kansas City, Kan.- the station is located outside of the new South Branch public library in Kansas City.
  • Hartford, Conn. – the station will be located outside of the Connecticut Science Center and will be installed in the summer or early fall of 2015.
  • Oklahoma City, Okla. – the station will be located in the children’s garden of the Myriad Botanical Gardens and will be installed in the summer or early fall of 2015.
VG Station in Kansas City, KS

Kansas City, KS

So what is next? We are excited about the expansion of the Village Green Project and hope to learn how some of the new system features perform, such as a combined wind and solar power system we’re using for more northern locations. We hope the project will provide more knowledge about how to build and operate next generation air quality measurement systems for use by communities. Please stay tuned for more updates from the Village Green Project team members as we continue our learning journey.


About the Authors: Esteban Herrera is an environmental engineer and project lead for the Village Green Project. Gayle Hagler is an environmental engineer who studies air pollutant emissions and measurement technologies. John White is leading the effort of expanding AirNow’s capabilities to handle one-minute data, including data from the Village Green stations.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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Air Sensors Citizen Science Toolbox


By Amanda Kaufman

There is a growing interest by citizens to learn more about what’s going on in their community: What’s in the air I breathe? What does it mean for my health and the health of my family? How can I learn more about these things and even be involved in the process? Is there a way for me to measure, learn, and share information about my local air quality?

Researchers at EPA have developed the virtual Air Sensors Citizen Science Toolbox to help citizens answer these types of questions and more. With the recent release of the Toolbox web page, citizens can now visit and find many different resources at this one simple location. As a citizen scientist myself, I am very excited to learn that there are funding opportunities for individuals and communities to conduct their own air monitoring research projects. The Funding Sources for Citizen Science Database is just one of the many resources on the Toolbox webpage.

One of the resources available as part of the Toolbox is the Air Sensors Guidebook, which explores low-cost and portable air sensor technologies, provides general guidelines on what to look for in obtaining a sensor, and examines important data quality features.

Compact air sensor that could be used by citizen scientists to monitor local air quality.

Compact air sensor that could be used by citizen scientists to monitor local air quality.

To understand the current state of the science, the Toolbox webpage also includes the Sensor Evaluation Report, which summarizes performance trials of low-cost air quality sensors that measure ozone and nitrogen dioxide. Future reports to be posted on the webpage will summarize findings on particulate matter (PM) and volatile organic compound (VOC) sensor performance evaluations.

As they are developed, more tools will be posted on the webpage, including easy-to-understand operating procedures for select low-cost sensors; basic ideas for data analysis, interpretation, and communication; and other helpful information.

I believe the Toolbox is a great resource for citizens to learn more about air sensor technology at a practical level. It will provide guidance and instructions to citizens to allow them to effectively collect, analyze, interpret, and communicate air quality data. The ultimate goal is to give citizens like you and me the power to collect data about the air we breathe.

About the author: Amanda Kaufman is an Environmental Health Fellow from the Association of Schools and Programs of Public Health (ASPPH). She is hosted by EPA’s Air, Climate, and Energy national research program.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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Changing Times: EPA’s Report on National Trends

By Gaelle Gourmelon

Some things in my childhood memories look different when I revisit them as an adult. That tall slide in the playground? It’s really only four feet high. The endless summer bike rides to the beach? They now take ten minutes. Sometimes, however, things seem different because they’ve actually changed. I recently went to a favorite childhood beach and saw that the dock was now stranded in the water, no longer reachable from the beach. Undeniable evidence of the changing coast.

But what evidence do we have to observe real changes over time when it comes to our national environment? What data can we use to determine if our environment has meaningfully changed?

To help answer these questions, EPA released the draft Report on the Environment 2014 (ROE 2014) for public comment in March, and it will undergo external peer review on July 30-31, 2014.

The ROE 2014 is not an intimidating, technical tome; it is an interactive website, full of national-level environmental and health indicators and is designed to make it easier to find information on national environmental trends. It’s not a giant, unwieldy database. Rather, it’s a summary of important indicators that paints a picture of how our environment is changing.

Why use indicators?

Just like having a high temperature indicates you are sick, environmental indicators help us understand the health of the environment. ROE indicators are simple measures that track the state of the environment and human health over time.

For example, if we want to understand the nation’s air quality, we can measure indicators such as lead emissions, acid deposition, and particulate matter concentrations to give us clues about overall changes. These indicators can help us make informed decisions about conditions that may otherwise be difficult to measure.

Report on the Environment

An exhibit for the acid deposition indicator gives us a clue about the changes in the quality of outdoor air in the US.


What’s included in the Report on the Environment?

Data for the ROE indicators come from many sources, including federal and state agencies as well as non-governmental organizations. EPA brought together scientists and other experts to determine what data are accurate, representative, and reliable enough to be included. With feedback from the public and our partners, we selected 86 indicators that help to answer questions about air, water, land, human health and exposure, and ecological condition. The ROE 2014 also includes new indicators on aspects of sustainability.

Why do we need the Report on the Environment?

EPA designed the ROE to help answer mission-relevant questions and help us track how we’re doing in meeting environmental goals. But because the ROE 2014 is an easy-to-use, interactive website, scientists, decision-makers, educators, and anyone who is curious about the environment and health can view the most up-to-date national (and sometimes regional) data, too. The ROE shows trends and sets up baselines where trend data do not yet exist. It also highlights gaps where we don’t have reliable indicators.

How can I participate in the external peer review meeting?

EPA is committed to proactively engaging stakeholders, increasing transparency, and using the best available science. By releasing the draft ROE 2014 for public comment and peer review, we benefit from stakeholder and scientific engagement to support the best conclusions possible. The draft ROE 2014 website will be reviewed by EPA’s Science Advisory Board in a public meeting on July 30-31, 2014. For additional meeting details, visit the July 11, 2014 Federal Register Notice and the SAB meeting website.

How can I stay connected with the ROE?

Everyone can use the ROE to inform their discussions of environmental conditions and related policies in the U.S. The information it provides helps you understand your environment, and encourages you to ask more questions about your environment and health. Now, it’s time to investigate. Things might have changed more than you think.

Sign up to be notified about the upcoming release of the final Report on the Environment 2014; you can also receive periodic updates and highlights.

About the author: Gaelle Gourmelon was an Association of Schools and Programs of Public Health Fellow working on EPA’s Report on the Environment project from September 2012 through May 2014. Her background in biology and environmental health has fueled her passion for reconnecting people with their natural and built environment.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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Interested in air sensors? Tune in to our webinar!

By Dustin Renwick

Soccer goalie with outstretched hand

Goal? Sensors will help make the call.

Sensors are everywhere these days. Some determine whether the ball has crossed the goal line in the World Cup. Others help EPA, state and local agencies, and communities take a more in-depth look at air quality.

Commercial manufacturers continue to develop low-cost air sensors that are portable and can relay data in nearly real-time. EPA researchers have begun to develop sensors and test their potential applications. Join our webinar on July 8 at 1 p.m. ET to learn more.

EPA researcher Ron Williams presented a small set of findings at the 2014 Air Sensors workshop in June, the fourth in a series of workshops designed to explore the opportunities and challenges associated with next-generation air quality monitoring technologies and data. Check out the Twitter feed for a look at the discussions that happened last month.

The sensor team, including Williams, has tested these new technologies in the laboratory and in the field. The group assessed how the sensors performed under a range of environmental conditions and with several different kinds of air pollutants. The team also evaluated the technical side of the sensors, including features such as data transmission and battery life.

EPA's Village Green Project, a solar-topped bench with air sensors

EPA’s Village Green Project

Williams will share much more information on the webinar, including the progress of the Village Green Project air monitor prototype and newly published reports about the use of these low-cost technologies.

“We have a lot to learn about sensors, their use, and how they can be applied for a wide variety of air monitoring applications,” Williams said.

“This presentation will give viewers an opportunity to understand what we at EPA have been doing and where the future lies in better understanding sensors and their potential applications.”

If you have any interest in the how sensors are transforming clean air science, the webinar will be worth watching!

About the author: Dustin Renwick works as part of the innovation team in the EPA Office of Research and Development.


Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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DISCOVER-AQ: Tracking Pollution from the Skies (and Space) Above Denver

NASA four-engine turboprop P-38 takes to the sky

NASA four-engine turboprop takes to the sky for clean air science.


EPA scientists have teamed up with colleagues from NASA to advance clean air research. Below is the latest update about that work. 

Denver is the last of four cities in a study by EPA and partners that will give scientists a clearer picture of how to better measure air pollution with instruments positioned on the earth’s surface, flying in the air, and from satellites in space.

The NASA-led study is known as DISCOVER-AQ, and is being conducted July 14 to August 12 in Denver.  The research began in 2011 with air quality measuring conducted in the Baltimore-Washington, DC, area followed by a field campaign in California’s San Joaquin Valley and Houston in 2013.

Right now, monitoring for pollutants such as sulfur dioxides, nitrogen oxides, particulates and ozone is done by ground-based systems strategically located across the U.S. to measure air quality in metropolitan areas and on a regional basis. Researchers want to tap satellite capabilities to look at pollution trends across wide swaths of the country.

“The advantage of using satellites is you can cover a wider area,” said Russell Long, an EPA project scientist.  “But right now, it’s hard for satellites to determine what air pollutants are close to the ground.”

Satellites could be an important tool for monitoring air quality given the large gaps in ground-based pollution sensors across the country and around the world. Improved satellite measurements should lead to better air quality forecasts and more accurate assessments of pollution sources and fluctuations.

However one of the fundamental challenges for space-based instruments that monitor air quality is to distinguish between pollution high in the atmosphere and pollution near the surface where people live.

Ground-based air sensor station

Ground-based air sensor station from the study’s previous Baltimore and Washington area component.

The ground-based sensor readings taken by EPA and other partners in DISCOVER-AQ will be compared to air samples taken by NASA aircraft flown between 1,000 and 15,000 feet in the skies above the Denver metropolitan area. EPA scientists are using the opportunity during the DISCOVER-AQ study to also test various types of low-cost and portable ground-based sensors to determine which ones work the best.

“Our goal is to evaluate the sensors to see how well they perform,” Long said. “By including more sensors it increases our understanding of how they perform in normal monitoring applications and how they compare to the gold standard (for measuring air quality) of reference instrumentation.”

New sensors could augment existing monitoring technology to help air quality managers implement the nation’s air quality standards.

Another big part of EPA’s involvement in DISCOVER-AQ is working with schools and academic institutions to develop a robust citizen science component for pollution monitoring. In Houston, hundreds of student-led research teams all worked to test the air pollution technology by taking regular readings at their schools when NASA aircraft flew overhead.

In Denver, most schools are out for the summer, but EPA researchers will be partnering with the Denver Museum of Nature and Science to share what they are doing in DISCOVER-AQ with the general public.

Long says he is also working with University of Colorado Boulder to look at a unique three-dimensional model of air pollution in the great Denver area. The end result of DISCOVER-AQ will be a   global view of pollution problems, from the ground to space, so that decision makers have better data and communities can better protect public health.

Learn More

DISCOVER-AQ in EPA Science Matters


NASA Discover-AQ Mission

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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A New Frontier for Air Sensors 2014

By Dustin Renwick

palm-sized air quality sensor

Compact air quality sensor fits in the palm of your hand.

The wearable market has expanded its product line—from smart glasses and smart watches to dozens of different fitness tracker wristbands and T-shirts that interact with the world around you.

What you don’t see in these gadgets is the tiny technologies that make it possible for your T-shirt to light up or for you to tap your wrist and see how many calories you’ve burned.

Similar to how computers shrunk from the size of rooms to the size of your front pocket, sensors have also been developed in ever decreasing dimensions.

One of the major applications for EPA: sensors that measure air quality. Agency researchers and others can use these portable, real-time sensors in the environment to gain a more intricate picture of what’s happening in our communities.

We’ve hosted a competition won by a design for a wearable sensor that estimates a person’s exposure to air pollution. EPA grants fund broad cookstove research, some of which includes the use of air sensors to measure pollution from indoor cookstoves.

Last fall, EPA collaborators published a seminal paper on the sensor revolution in a top journal, Environmental Science & Technology. The journal received more than 5,400 submissions in 2013 on a variety of topics, and EPA’s research won first runner-up for best feature paper.

One of the most important parts of this field of study is the diversity of people interested in the work.

Next week, we’ll hold an air sensors workshop to spark more discussions and continue this important work advancing innovative air sensor technologies by bringing together scientists, policy experts, technology developers, data analysts, and leaders from government, industry, and community groups.

To learn more about the opportunities and challenges that air sensors present, register for the webcast of our workshop on June 9-10.

We’ll live tweet the event from @EPAresearch using #AirSensors.

About the author: Dustin Renwick works as part of the innovation team in the EPA Office of Research and Development.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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Bringing EPA Research—and Confidence—to the Classroom

By Dana Buchbinder

As an undercover introvert I never imagined myself returning to the chaos of middle school, but this spring I took a deep breath and plunged in. For ten Wednesdays I co-taught an afterschool air science apprenticeship for sixth and seventh graders in Durham, North Carolina. The curriculum, “Making Sense of Air Quality,” was developed and taught by two EPA researchers who have volunteered for the past three years with a not-for-profit educational organization.

Students demonstrate air pollution sensors

Making Sense of Air Quality: students demonstrate the air quality sensors they built.

I joined the ranks of these EPA “Citizen Teachers” to help close the opportunity gap in education. The public middle school where we taught serves students from low income families, with 84% of students eligible for free or reduced lunch programs. 15 students participated in our apprenticeship to learn career skills and become air science experts at their school.

At first it was challenging to relax in front of a room of squirmy kids, but I was surprised by how quickly I adapted to students’ needs. Lessons don’t always go as planned (okay, almost never), but patient teaching in hectic moments inspires students to become more observant scientists. When I could step back and appreciate the weekly progress, I recognized the class’s accomplishments.

The students built air sensors from kits an EPA researcher created for outreach. None of the middle schoolers knew electrical engineering or computer programming when we began, but they learned the foundations of these skills in just a few weeks. I watched one student who had struggled with air pollution vocabulary build a working air sensor from a diagram. Meanwhile, his classmate formulated a hypothesis about how her sensor would react to dust in the air.

We asked students to think like environmental scientists: Where would they choose to place air sensors in a community? How could they share what they learned about air pollution?

They saw air quality sensors in action during our field trip to the Village Green Project, an EPA community air monitor at a Durham County Library. Exploring the equipment gave the apprentices more hands-on practice with science.

In addition to teaching kids about EPA air research, this spring’s apprenticeship focused on two 21st century skills: technology and communicating science. These are career tools for a host of much-needed occupations, but are also vital to advancing research for protecting human health and the environment.

We challenged students to share their new air quality knowledge creatively. They designed posters for a community Air Fair and crafted rhyming “public service announcements” to explain how EPA’s AirNow School Flag Program helps young people stay healthy.

The highlight of the apprenticeship for me was standing back as the students showcased what they learned in a scientific presentation for parents, teachers, and scientists. Nearly 300 people attended this culminating event for all the spring apprenticeships. With remarkable professionalism our class explained figures on poster displays, operated their air sensors, and quizzed the audience with an air quality game.

The guests were impressed by the students’ knowledge and caught their enthusiasm in learning about air quality. Asked if the sensor measured pollen, one student said, “oh no, that’s much too big, we are measuring very tiny particles.” Such responses exhibited scientific thinking, focus, and vastly improved understanding of air pollution.

As Citizen Teachers, we were proud to see even the shyest kids present with confidence. These students reminded me that introverts can share passionately when strongly motivated by the subject. By the end of the apprenticeship I had gained my own confidence as an educator from this young flock of scientists.

About the Author: Dana Buchbinder is a Student Services Contractor in EPA’s Office of Research and Development. She hopes you will attend the upcoming Air Sensors Workshop, where speakers in Research Triangle Park, NC will present on air quality monitoring with students.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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How Many Breaths Do You Take Each Day?

By Ann Brown

Map of U.S. with color-coded air quality index

It’s Air Quality Awareness Week!

Watching the news and the problems that some countries are having with high levels of air pollution makes me appreciate the Clean Air Act, which calls on EPA and the states to protect air quality through programs based on the latest science and technology. I am especially appreciative today, the first day of Air Quality Awareness Week.

When I joined EPA’s Office of Research and Development 16 years ago, I didn’t think much about the quality of the air I breathe. I took it for granted. It is an unlimited supply. I don’t have to pay a monthly bill for it. It is just there for the benefit of my body.

Then as I began to work with scientists and engineers conducting air research at EPA, I gained an appreciation for this precious resource.  Their research showed me why it is important to know what is in the air, how you can be exposed to any pollutants it contains, and what the related risks and health effects might be. I’ve also learned about their work on advancing control technologies to reduce air pollution. EPA scientists are working in all these areas to provide the science that can be used to protect air quality.

The average person takes between 17,280 and 23,040 breaths a day. That is a lot of breaths…and each one is an opportunity to put pollutants into your lungs and body and to increase health risks if you are exposed to air pollution. For example:

  • Research shows that air pollution is linked to health effects and disease, including heart disease and stroke. EPA is a partner in the Million Hearts initiative to educate the public, especially those with heart disease, about the dangers of air pollution to their health. You can learn more about air pollution and heart disease at www.epagov/healthyheart.
  • Air pollution can cause or worsen asthma. Extensive research links asthma to ozone, particle pollution and a host of common indoor environmental asthma triggers. Join EPA experts to discuss asthma and outdoor air pollution on a Twitter chat on May 1 at 2 p.m. (Eastern Time) on @EPALive. Use the hashtag #asthma.

Air quality awareness week is a good time to learn what you can do to protect your health and the health of your friends and family. Many resources are available to learn about air quality and how to protect your health. A good start is to use the Air Quality Index where you can get daily local air quality reports and information to protect your health from air pollution.

Scientists continue to investigate air quality to protect our health and the environment. I’m glad to be a small part of this effort. Learn more about what scientists are doing at

About the author: Ann Brown is the communications lead for EPA’s Air, Climate, and Energy Research Program.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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What Does Climate Change Have to do with Weather…and Baseball?

By Andy Miller

Nationals Park, Washington, DC

Nationals Park, Washington, DC

A question I often hear is whether a particular weather event or condition is caused by climate change, and my answer is almost always no.  You can’t say that a specific tornado, torrential downpour or 100 degree plus day is caused by climate change.

So if the answer is that the weird weather isn’t caused by climate change, then why are we so concerned?  Before we get to that, let’s remember what climate is.  Climate is the long-term average of the weather.  As has been said, “Climate is what we expect, weather is what we get.”

Climate change means that the expected weather patterns are no longer what they used to be—that is, the long-term average weather is changing.  While the climate has changed in the past, now we are seeing changes that can only be explained by the rising level of greenhouse gases caused by human activities such as burning fossil fuels and cutting down forests.

The question about whether climate change has “caused” a particular weather event is like asking whether a baseball team scored on a specific play because it has a better win-loss record than its opponent. The win-loss record doesn’t determine the outcome of an individual play, but all those individual plays determine the win-loss record.  Climate is like a team’s win-loss record—it doesn’t determine a specific weather event, but rather all the individual events determine the weather patterns that make up climate. And with climate change, it’s becoming clearer that the losses are starting to stack up against us.

If climate doesn’t determine a specific weather event, why do we often hear that climate change is affecting the weather?  What we need to remember is that this is just shorthand for what the science is really telling us.  What the science is really saying is, “higher levels of greenhouse gases in the atmosphere are trapping greater amounts of solar energy, which is causing a change in how the atmosphere and oceans circulate, the amount of moisture in the air, and the amount of ice, all of which are causing changes to weather patterns across the globe.”  That’s a lot to say, so you can see why we simply talk about climate change as the cause of these impacts.

The “impacts of climate change” (which we can use now that we know what that’s really saying) are discussed in considerable detail in the new National Climate Assessment that will be published in the coming weeks.  The assessment explains what changes we are seeing now, and what we expect to see in the coming years.  It shows why we’re concerned about climate change and its impacts. And most importantly, it explains why we need to take action now on climate change.

We are only starting to see the impacts of climate change.  To turn to our sports analogy again, it’s like we’re at the start of a new season.  It’s often hard to see which team is going to be the best after only a few games.  But as the season progresses, it will be easy to see which teams have prepared well by bringing in the best players and training hard before the season starts.

Likewise, taking action on climate change now means that we will be much better prepared to meet the challenges we face in the coming years.  EPA is taking action now on climate change, and that includes EPA’s scientists and engineers.  They are teaming up to develop the scientific information and tools that will help the nation and the world prepare a winning game plan to respond to climate change.

A team that waits to begin training until after it falls behind in the standings has no chance of winning, and waiting to act on climate change until the impacts are even worse is also a losing strategy.

About the Author: Andy Miller is the Associate Director for Climate in EPA’s Air, Climate, and Energy Research Program that conducts research to assess the impacts of a changing climate and develop the scientific information and tools to act on climate change.

Learn More! 

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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Reposted: How EPA Research Supports Taking Action on Climate Change

Reposted from EPA’s Connect blog, the official blog of EPA’s leadership.

By Lek Kadeli

As my EPA colleagues and I prepare to join millions of people from across the nation and around the globe to celebrate the environment on April 22, it’s a good time to remember how much we’ve accomplished together since the first Earth Day in 1970.

Forty-four years ago, it wasn’t hard to find direct evidence that our environment was in trouble. Examples of air pollution could be seen at the end of every tailpipe, and in the thick, soot-laden plumes of black smoke flowing from industrial smokestacks and local incinerators. Litter and pollution-choked streams were the norm, and disposing of raw sewage and effluent directly into waterways was standard practice. A major mid-western river famously ignited, sparking both awareness and action. The central theme of EPA’s Earth Day activities this year is Taking Action on Climate Change, echoing our commitment to meeting today’s greatest environmental challenge. And just like our predecessors did decades ago, we are supporting those actions with the best available science.

Dr. Chris Weaver, an EPA scientist currently on leave to serve as the Deputy Executive Director of U.S. Global Climate Change Research Program, explains: “EPA has a major role to play in preparing the nation for change, through its critical responsibilities for ensuring clean air, clean water, and healthy communities and ecosystems. And EPA researchers, working in partnership with their colleagues in other Federal agencies and in the broader scientific community, are at the forefront of advancing understanding of the impacts of—and responses to—climate and related global change.”

Examples of that work include:

I invite you to read more about these and other examples in the 2014 Earth Day edition of our EPA Science Matters newsletter. It features stories on how EPA researchers and their partners are supporting Agency strategies and President Obama’s Climate Action Plan.

Our amazing scientists and engineers are providing the science that decision makers, communities, and individuals need for developing strategies to protect public human health and the environment in the face of a changing climate. Thanks to them, I am confident that future Earth Day events will celebrate how we were able to take action and meet the challenges of a changing climate.

Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action.

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