Steven Chu, Earth Day, Global Warming

Steven Chu, Earth Day, Global Warming

Hank is worried about people who want to take us back to the stone age in response to environmental challenges. For my Earth Day post, here's someone who's talking sense (no, I'm not implying that…
Osmium Levels Rising

Osmium Levels Rising

Dartmouth researchers have determined that the presence of the rare element osmium is on the rise globally. They trace this increase to the consumption of refined platinum, the primary ingredient in…
Global Cooling - What Would Earth Be Like?

Global Cooling - What Would Earth Be Like?

Global warming gets all the press today but there was a time when pollution-caused global cooling was the concern - and if you map the planet's recent history, 90,000 out of every 100,000 years were…