WATCH: The latest evidence of widespread sperm count decline

"Pregnant women, and men planning to conceive a pregnancy, have a responsibility to protect the reproductive health of the offspring they are creating."

Dr. Shanna Swan, a leading reproductive epidemiologist at Mount Sinai and adjunct scientist with Environmental Health Sciences, discusses a new analysis that found that sperm count globally dropped by more than half between 1973 and 2018, and that the decline is accelerating.


Dr. Swan, a coauthor of the new analysis published in the Human Reproduction Update journal, outlines the implications of this infertility crisis and some of the environmental causes. Swan authored the book Count Down: How Our Modern World Is Threatening Sperm Counts, Altering Male and Female Reproductive Development, and Imperiling the Future of the Human Race.

Watch the video above for Dr. Swan's thoughts on the latest findings, and read about the report here.

New Colorado plan envisions 2.1M electric cars on state roads by 2035

Colorado proposes new truck sales at 30% electric by 2030, but trucking industry questions whether it’s feasible.

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Senator Whitehouse puts climate change on budget committee’s agenda

For more than a decade, Senator Sheldon Whitehouse gave daily warnings about the mounting threat of climate change. Now he has a powerful new perch.

Biden, Trudeau announce progress on Canadian coal mine pollution agreement

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International Courts to rule on climate obligations
photo: Vince Reinhart/Flickr/Commercial use & mods allowed/Artwork by Nissa Tzun/

Three international courts could soon rule on the obligations of nations in responding to climate change

The rulings, while legally non-binding, could still carry significant moral and legal weight. A group of 18 climate-vulnerable nations are seeking an opinion from the “World Court,” with support from 117 other countries.

hauling water children
Photo by Gyan Shahane on Unsplash

U.N. warns of water wars as 2 billion people lack clean water

A new report by the United Nations warns that a quarter of humanity lacks access to safe drinking water, and nearly half of the global population has no access to basic sanitation. Unless action is taken, 60% of the world’s population could face water supply issues by 2050.

tornado warning systems deficiencies
NOAA Photo Library/Flickr/Commercial use & mods allowed

Rolling Fork residents say they didn't hear any tornado warning sirens

Many Rolling Fork residents say they didn't hear sirens before the Mississippi tornado. Questions now remain about warning systems in poor, rural communities.
sea creatures are washing up dead
Michael Coghlan/Flickr/Commercial use & mods allowed

Why sea creatures are washing up dead around the world

From Florida to New Zealand, algal blooms, warming seas and human activities are threatening aquatic species.
EU chiefs use private jets
Photo by Chris Leipelt on Unsplash

EU chiefs flew to UN climate talks in private jet

European Council President Charles Michel hopped on a private jet for 72 of 112 official trips.
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