January 8, 2026
Trump is Failing the Climate Test. Will You Pass Our Climate Quiz?
The Trump administration is pushing climate denial and limiting our government’s ability to act. See how well you understand what the administration is up to by taking our quiz.
Answer: The endangerment finding enables the Environmental Protection Agency to regulate climate emissions as air pollutants under the Clean Air Act.
Answer: Transportation is the sector producing the most climate emissions in the United States.
If the EPA rescinds the endangerment finding, they would undercut the basis for the agency's climate emissions standards on cars and trucks.
In addition to cutting climate emissions, these standards were helping curb some of the air pollution coming from the tailpipe of cars and trucks — a form of pollution responsible for thousands of premature deaths every year.
Answer: All of the above are human health impacts associated with climate emissions.
Burning fossil fuels is the top driver of climate change and is also extremely dangerous to human health.
The annual cost of burning fossil fuels to our public health in the U.S. is a staggering $820 billion.
Climate change is increasing extreme weather events, worsening wildfires and smoke, and expanding the footprint of infectious diseases.
Answer
In 1896, Swedish scientist Svante Arrhenius first quantified how carbon dioxide contributed to a greenhouse effect in Earth’s atmosphere. Oil companies knew about the link between burning fossil fuels and climate change as early as the 1950s.
By the 1990s, the scientific community came to a general consensus on human-caused climate change.
In 2009, the EPA finally brought U.S. policy in line with 113 years of science with the endangerment finding.
Answer
The landmark U.S. Supreme Court decision in Mass. v. EPA in 2006 solidified the EPA’s authority to regulate greenhouse gas emissions, leading to the EPA’s endangerment finding in 2009.
Then, Earthjustice and our partners successfully defended the endangerment finding against a fossil fuel industry challenge more than a decade ago, culminating in the Supreme Court denying a final appeal by industry.
What’s next?
Earthjustice will pursue every legal avenue to defend the endangerment finding and ensure the federal government is meeting its obligations to keep us safe from climate change.
Join us in this fight by making your voice heard.
Additional Resources
- A Legal Analysis of the Trump EPA’s Plan to Revoke the Endangerment Finding, explained by Earthjustice attorneys Hana Vizcarra and Marvin C. Brown IV
- Why the EPA’s endangerment finding matters, and the major safeguards that depend on the endangerment finding
“I believe the science supporting the causes of climate change, the impacts on our world, and the steps that must be taken to stop this disaster.
“The world needs the U.S. to be a power in stopping the actions that cause climate change.”
C. H.
Santa Rosa, California
“We must trust science and commit to keeping our country and planet protected using all of the avenues that we have at our disposal ...”
J. H.
Bonney Lake, Washington
“I’m a meteorologist with two degrees in atmospheric science.
The great majority of the most qualified scientists in my field believe human-caused greenhouse gas emissions, much of which come from burning dirty fossil fuels like oil and gas, as well as other short-sighted irresponsible human actions like mass deforestation are responsible for a dangerous climate change and that urgent action is necessary to avoid the worst impacts.”
K. C.
Marquette, Michigan
“The time is now to stand strong for what we all know is right.”
T. L.
Las Vegas, Nevada
“I am beyond worried about climate change, as I see the destruction it is causing around the world.”
S. H.
Minneapolis, Minnesota
“Climate change is a fact, not a hoax.”
E. T.
Bellows Falls, Vermont
“Science can be vilified, lied about, and ignored, but the reality that science has revealed is that our planetary environment and systems are in peril.
“It is foolish for any government to ignore the facts and therefore jeopardize not only the health and safety of the citizens, but also its economic stability.”
C. F.
Harpers Ferry, West Virginia
“Changing climate affects the whole planet currently and long into the future.
“We know how to mitigate the disastrous effects; we must cease fossil fuel extraction and burning immediately.”
B. & J. D.
Decorah, Iowa