Takeaway #1
If carbon dioxide levels in Earth’s atmosphere are allowed to rise beyond what they are today, certain effects to the Earth’s climate will be “locked in” and irreversible for at least a thousand years, a new study finds.Takeaway #2
Carbon dioxide levels in the atmosphere today are about 385 parts per million (ppm) (in other words, for every million molecules of gas in the atmosphere, 385 are carbon dioxide molecules). Before the industrial revolution, carbon dioxide levels were around 280 ppm.Takeaway #3
Considering just the expansion of warming ocean waters — without melting glaciers and polar ice sheets — the authors find that the irreversible global average sea level rise by the year 3000 would be at least 1.3–3.2 feet (0.4–1.0 meter) if carbon dioxide peaks at 600 parts per million, and double that amount if it peaks at 1,000 parts per million.
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synopped by: neuegrafik (reach: 7)
category: World News
Future Emissions May Cause 'Irreversible' Warming | Live Science
