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[Broadcast] Damaged Amazon Adds To Global Warming; Prehistoric Magnetic Flip Shook Up Life On Earth; Birch, Beech And Other Unusual Syrups; and more
March 26, 202152m 29s
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Show Notes
Damaged Amazon Adds to Global Warming / Belo Monte Dam Disrupts Amazon Floodplain Balance / Horse of a Different Color / Beyond the Headlines / Prehistoric Magnetic Flip Shook Up Life on Earth / Not Just Maple Syrup: Birch, Beech and Other Sappy Trees
The first broad study of all greenhouse gases in the Amazon rainforest reveals that the damaged ecosystem is now a net contributor to climate change, due mostly to warming and other human activities like logging, dam-building, and cattle ranching.
Also, Earth's magnetic poles wander around and flip every now and then, and now scientists have evidence for how these flips impact life on Earth. Linking a magnetic pole reversal about 41,000 years ago to megafauna extinctions, climatic changes, and even a rise in ancient cave art.
And it's maple syrup season, but these aren't the only sappy trees that can be tapped to make syrup. A trip to a syrup producer in New Hampshire to taste syrups made from birch, beech, walnut, and other trees.
The first broad study of all greenhouse gases in the Amazon rainforest reveals that the damaged ecosystem is now a net contributor to climate change, due mostly to warming and other human activities like logging, dam-building, and cattle ranching.
Also, Earth's magnetic poles wander around and flip every now and then, and now scientists have evidence for how these flips impact life on Earth. Linking a magnetic pole reversal about 41,000 years ago to megafauna extinctions, climatic changes, and even a rise in ancient cave art.
And it's maple syrup season, but these aren't the only sappy trees that can be tapped to make syrup. A trip to a syrup producer in New Hampshire to taste syrups made from birch, beech, walnut, and other trees.
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