A Project of The Annenberg Public Policy Center

Cruz Misses Mark on Endangered Species

Ted Cruz said that “one of the worst things that can happen to a species is to be listed on the Endangered Species Act.” But the ESA has led to recovery of a number of species, and there is little evidence that listing harms animals and plants.

Clearing Up Claims on EPA Fracking Study

The Environmental Protection Agency released the draft of a long-awaited study on the potential impacts of hydraulic fracturing — fracking — for natural gas on drinking water, and individuals on both sides of the debate have misrepresented the study’s findings.

Jeb Bush Off on Contributions to Warming

Jeb Bush claimed that the science is unclear as to how much humans contribute to global warming. The United Nations climate change research organization, however, said it was “extremely likely” that more than half of the warming since 1950 is due to human activities.

Does a Fetus Feel Pain at 20 Weeks?

A number of Republican House members say scientific research proves a 20-week-old fetus can feel pain. But the ability to feel pain at that specific point in gestation is unproven.

FlackCheck Video: Warmest Year

Was 2014 “the planet’s warmest year on record,” as President Obama has said? This FlackCheck video uses an April 20 report from our SciCheck feature to examine that claim.

FlackCheck Video: Marijuana

This FlackCheck.org video looks at New Jersey Gov. Chris Christie’s claim that marijuana is a “gateway drug.” The video is based on an April 23 report from SciCheck.

The Extreme Weather-Warming Connection

Rep. Lamar Smith made several incorrect claims in a Wall Street Journal opinion piece regarding connections between climate change and severe weather.

Is Marijuana Really a ‘Gateway Drug’?

Though there are correlations between marijuana use and other drugs, there is no conclusive evidence that one actually causes the other. The science on this topic is far from settled.

Santorum and the EPA’s Mercury Rule

Rick Santorum misrepresented the Environmental Protection Agency’s impact analysis of a new agency rule that would reduce power plant emissions of mercury and other toxins.