Archive for the ‘Science and technology in local, national, and global c’ Category

Planetary limits: More than just global warming - Thursday, October 1st, 2009

Scientists propose 9 limits on human actions: Wrecking ozone, over-using fertilizer, killing species could block key “ecosystem services.” Are there natural limits to fresh water use and pollution?

No joke: Laughing gas attacks ozone! - Thursday, September 3rd, 2009

The ozone layer protects Earth from UV rays: Twenty-two years after a treaty to protect ozone, how is the layer doing? What has happened to the ozone hole above Antarctica?

History of fishing - Thursday, May 28th, 2009

A new study finds a surprising number of fish, birds and mammals in the oceans 100 and 1,000 years ago. Can this information help regulators slow the decline of important marine animals?

Investments: The psychology of money - Thursday, October 23rd, 2008

What does science tell us about dealing with money? Can thinking about money change your behavior? How do monkeys gamble? Is ‘homo economicus’ truly rational? Do some people thrive on financial risks?

Hungry? History has lessons for improving farm productivity. - Thursday, April 24th, 2008

After World War II, the “green revolution” sparked an explosion in farm output in developing countries. With soaring food prices and spreading food riots, what can we learn from the green revolution?

Pilot perfection: Errors plunge! - Thursday, January 3rd, 2008

Pilot errors have dropped 40 percent over 20 years, but on-the-ground accidents have increased. Why have pilot errors declined? What work remains to increase airline safety?

New plug-in hybrid claims 640 miles per tank - Thursday, November 29th, 2007

Plug-in hybrids mean more than just extra spending cash for drivers, though. They could offer a new path through the maze of the electric grid, and help to boost the use of alternative energy.

Electric Cars: Meet the plug-in Hybrid - Thursday, November 29th, 2007

Hybrid cars and fuel cells increase auto efficiency and reduce pollution, but it’s a long struggle from the idea to the reality.

Super-schnozz: Instant detector spots rotten food - Thursday, August 16th, 2007

Using a chemical reaction that changes color when specific chemicals are present, a new “dipstick” may detect spoilage better than the human nose.

NukeWar, Regional Version - Thursday, December 21st, 2006

What would happen to the global climate after a nuclear war between India and Pakistan? Study says the planet would be dark and cool for 10 years. How much would food production decline?

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