The lesson plan provides a full menu for use from primary school to high school. Depending on the grade level and the unit of study that provides the context for a...
Earth sliding into ‘ecological debt’ earlier and earlier, campaigners warnLast Updated on 2014-08-20 11:56:47
Humans have used up the natural resources the world can supply in a year in less than eight months, campaigners have warned.
The world has now reached “Earth overshoot day”, the point in the year when humans have exhausted supplies such as land, trees and fish and outstripped the planet’s annual capacity to absorb waste products including carbon dioxide. CLICK HERE TO READ MORE.
Here’s How Arctic Sea Ice Could Shrink Even MoreLast Updated on 2014-08-20 11:49:26As the sea ice covering the Arctic continues to shrink under the influence of greenhouse gas-induced warming, it’s causing a host of other changes in the region, including the growth of large waves in the previously iced-over areas. Those waves could potentially reinforce and hasten the demise of sea ice, leading to further changes in the fragile polar realm.
Changes brought on by global warming in the Arctic region have been well documented. Temperatures there have risen twice as fast as the global average. That rise is tied to a decline in Arctic sea ice, which has seen its seasonal minimum area shrink by nearly 14 percent per decade since the late 1970s. Those changes could be influencing weather patterns in lower latitudes of the world, though that’s an area of continuing research for scientists.
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Why we should trust scientistsLast Updated on 2014-08-18 13:12:13Many of the world's biggest problems require asking questions of scientists — but why should we believe what they say? Historian of science Naomi Oreskes thinks deeply about our relationship to belief and draws out three problems with common attitudes toward scientific inquiry — and gives her own reasoning for why we ought to trust science.
The emergent patterns of climate changeLast Updated on 2014-08-18 10:51:29
You can't understand climate change in pieces, says climate scientist Gavin Schmidt. It's the whole, or it's nothing. In this illuminating talk, he explains how he studies the big picture of climate change with mesmerizing models that illustrate the endlessly complex interactions of small-scale environmental events. See more here
Allan Savory: How to fight desertification and reverse climate changeLast Updated on 2014-08-18 10:41:37
“Desertification is a fancy word for land that is turning to desert,” begins Allan Savory in this quietly powerful talk. And it's happening to about two-thirds of the world’s grasslands, accelerating climate change and causing traditional grazing societies to descend into social chaos. Savory has devoted his life to stopping it. He now believes — and his work so far shows — that a surprising factor can protect grasslands and even reclaim degraded land that was once desert.
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