All explainers
Explainer
What is Sustainable Agriculture?
There’s a transformation taking place on farms across the United States.
Explainer
Tropical Deforestation and Global Warming
Tropical deforestation accounts for less than 10 percent of the world's global warming pollution. Protecting forests helps to fight global warming, protect biodiversity, and promote sustainable development.
Explainer
What Is Ethylene Oxide (EtO)?
An explainer page about the health threats posed by Ethylene Oxide (EtO) to workers and communities
Explainer
How Energy Storage Works
One of the keys to achieving high levels of renewable energy on the grid is the ability to store electricity and use it at a later time.
Explainer
COVID-19 Vaccine FAQ
As COVID-19 vaccines become more widely available, it's important to have access to reliable scientific information. Here are answers to the most common questions.
Explainer
Drought and Climate Change
Learn about the different types of drought, the many factors that contribute to their development, and how climate change can have a significant effect on many of them.
Explainer
The Clean Power Plan
Analysis and information on the EPA's Clean Power Plan.
Explainer
How Boiling Water Reactors Work
A slideshow PDF that explains the structure and function of a typical boiling water nuclear reactor (BWR).
Explainer
Does Cold Weather Disprove Climate Change?
It most certainly does not—but it does change the intensity of the heaviest storms.
Explainer
Are Humans the Major Cause of Global Warming?
A straightforward explanation of how we know that humans cause global warming, using charts, graphs, and plain language.
Explainer
What is Solar Geoengineering?
Solar geoengineering technologies cool the earth by reflecting sunlight back into space—but they pose many risks, challenges, and uncertainties.
Explainer
Vote-By-Mail and the 2020 Election
More voters than ever before will cast their ballots by mail this year. How do we know it's reliable, and how it will make this year's election different?