Facebook Twitter Tumblr Close Skip to main content
A Project of The Annenberg Public Policy Center

Distorting the Asthma-Ozone Link

Distorting the Asthma-Ozone Link

A Republican congressman falsely claimed there are “thousands of studies” that refute the Environmental Protection Agency’s conclusion that ground-level ozone, a component of smog, exacerbates asthma attacks.

SciCheck Speaks with WHYY

SciCheck Speaks with WHYY

FactCheck.org’s SciCheck writer, Vanessa Schipani, spoke with WHYY radio host Dave Heller about topics she has covered in recent articles.

Debate Over Gay Blood Donations

Debate Over Gay Blood Donations

Days after the mass shooting at a gay nightclub in Orlando, House members and the White House made seemingly contradictory claims concerning the Federal Drug Administration’s blood donation policy for gay and bisexual men. Both have scientific evidence to back up their claims.

Video: Trump’s Drought Claims

Video: Trump’s Drought Claims

This week CNN’s Jake Tapper takes a look at Donald Trump’s misleading claims about California’s drought and water management issues.

Trump’s Dubious Drought Claims

Trump’s Dubious Drought Claims

Donald Trump suggests “there is no drought” in California because the state has “plenty of water.” He promises “to start opening up the water,” and he says he’ll “get it done quick.” But there is a drought, and we explain why there is no “quick” solution.

Trump’s Hot Air on Wind Energy

Trump’s Hot Air on Wind Energy

Trump said wind farms in the U.S. “kill more than 1 million birds a year.” Reliable data are scarce, but current estimates range from 20,000 to 573,000 bird deaths per year. Trump also falsely claimed shooting an eagle leads to five years in prison.

All Wet on Water Quality Data

All Wet on Water Quality Data

During a recent congressional hearing, Rep. Steve King of Iowa underestimated what scientists know about the relationship between farming practices and water quality.

Trump on Hairspray and Ozone

Trump on Hairspray and Ozone

For at least five years, Donald Trump has been making false claims about hairspray and its impact on the ozone layer.

What Zika Means for Americans

What Zika Means for Americans

During floor addresses urging Congress to act on President Obama’s $1.9 billion request for emergency funds to combat the Zika virus, a number of senators made claims that were either misleading or lacked context.

Video: Clinton on Marijuana Research

Video: Clinton on Marijuana Research

This week, CNN’s Jake Tapper, with the help of FactCheck.org, fact-checks Democratic presidential candidate Hillary Clinton’s claim that “you can’t do any research about” marijuana because it’s a Schedule I drug. That’s false.