Climate Change Misconceptions Archives

Q&A on the Trump EPA’s Effort to Curtail Regulation of Greenhouse Gas Emissions

August 21, 2025

The Environmental Protection Agency is holding public hearings this week on its effort to undo the legal foundation for its regulation of greenhouse gases, the heat-trapping gases that cause climate change. In a major policy shift announced in late July, the Trump administration EPA said it would rescind the so-called “endangerment finding,” which allows the agency to regulate such emissions, arguing that legal and scientific developments justify a reconsideration.

Weather Modification Played No Role in Texas Floods

July 16, 2025

Unfounded rumors linking an extreme weather event to human attempts at weather modification are again spreading on social media. It is not plausible that available weather modification techniques caused or influenced the July 4 flash flooding along the Guadalupe River in Texas.

What We Know About What Led to the L.A. Wildfires

January 17, 2025

We explain what’s known about how the catastrophic L.A. wildfires started and the factors that scientists do — and don’t — think contributed.

Harris vs. Trump on Climate Change

November 1, 2024

Vice President Kamala Harris and former President Donald Trump have starkly different track records on climate change. To shed light on the two candidates’ climate agendas, we sorted through their campaign materials and recent statements on the campaign trail.

Baseless Claims Proliferate on Hurricanes and Weather Modification

October 11, 2024

Experts say people cannot create or meaningfully alter hurricanes through existing weather modification techniques. That has not stopped a deluge of social media posts baselessly claiming or implying that Hurricanes Helene and Milton were intentionally created, steered or otherwise controlled by someone.

Trump Clings to Inaccurate Climate Change Talking Points

September 9, 2024

Former President Donald Trump, who has famously called climate change a “hoax” for many years, hasn’t used the word lately with respect to climate change. But he still clings to some similar arguments, and other claims he makes about climate change haven’t changed much over the years.

Trump Revives — and Further Decreases — His Absurdly Low Estimate of Sea Level Rise

August 23, 2024

On the campaign trail this summer, former President Donald Trump has routinely cast doubt on climate change by falsely claiming that the oceans will rise just “one-eighth of an inch over the next 400 years.” He’s previously used the same measurement over a period of 250 years. In fact, the current rate of sea level rise is already a little more than one-eighth of an inch each year.

Wind Energy’s Key Environmental Advantage? Low Emissions

June 24, 2024

Q: Are wind farms harmful to the environment?

A: Like all energy sources, wind farms have some negative environmental impacts. But getting energy from wind farms results in dramatically lower greenhouse gas emissions than getting it from fossil fuels.

Antarctic Ice Loss Is Significant, Contrary to Claims

June 6, 2024

Antarctica is losing ice mass to the ocean, contributing to global sea level rise. But a popular video misrepresented work focused on Antarctic ice shelves — which float in the sea at the edges of the continent — to incorrectly suggest that “it is unclear if Antarctica is losing any ice on balance.”

CO2 makes up a small fraction of the gases in the atmosphere, but is very powerful

About 99% of the Earth’s atmosphere is made of just two gases: oxygen and nitrogen. By comparison, the amount of carbon dioxide — which at more than 400 parts per million, is the highest it’s been in several million years — may seem small. It’s equivalent to just 0.04% of the atmosphere.

This fact is often cited by people who are trying to falsely claim that CO2 isn’t responsible for global warming. These individuals also often add that the amount of CO2 from humans is just a fraction of that already small total.