This week marks 25 years since more than 1,700 scientists, led by the Union of Concerned Scientists, issued a “warning to humanity” concerning the costs of continued environmental destruction.
Now, they’ve issued another — this one signed by 15,000 scientists representing 184 countries.
Read/listen to my full story at KJZZ’s Arizona Science Desk:
25 Years Later, Global Scientists Issue Second Warning To Humanity
The recent solar eclipse plunged a swath of the U.S. into two minutes of gloom, but it’s nothing compared to the years-long night that almost wiped out life on Earth 66 million years ago.
Read/listen to my full story at KJZZ’s Arizona Science Desk:
Years-Long Darkness Doomed Survivors Of Dinosaur-Killing Asteroid
Stable, nontoxic refrigerants changed the world, transforming food storage, expanding Sun Belt populations, even helping early movie theaters succeed. But they also wrecked the ozone layer — Earth’s shield against harmful ultraviolet radiation.
Today, as stockpiles dwindle — and prices rise — due to phase-outs set by the Montreal Protocols 30 years ago, the future of Freon and its successors remains in doubt.
Read/listen to my full story at KJZZ’s Arizona Science Desk:
As Stockpiles Dwindle, Freon Prices Rise
Far too many scientists who made major contributions to knowledge and human health go unremarked, forgotten save for the occasional postage stamp or Google doodle. So when I was offered the chance to write about a few of the many outstanding scientists who came from Spanish-speaking lands, cultures and ancestors, I was understandably excited…and a little nervous. On the one hand, combining such a varied assemblage of people under one term – especially the political term Hispanic – wasn’t ideal. On the other hand, it gave me the chance to explore, and raise awareness of, a remarkably diverse array of persons, backgrounds and accomplishments. I hope you’ll find their stories as inspiring as I did.