Yes, the Earth is getting greener, but that is not as good as it sounds. |
The main reason? All the extra carbon dioxide we humans dump
into the air.
Let me be clear right away: This is a kinda sorta good
thing, but don’t celebrate the positive aspect of climate change just yet. The
effect almost certainly won’t last, and this small positive is completely
buried under a long, long list of negatives.
The research used satellites to examine vegetation growth
over time, assuming that the extra green is coming from leaves on plants and
trees. Using a computer model to estimate leaf growth, they find the extra
greening is equivalent to adding about 18 million square kilometers of
vegetated land to the globe, more than twice the area of the mainland U.S.
That’s pretty astonishing.
Read Phil Plait’s story on Grist - “Earth is getting greener. Here’s why that’s a problem.”
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