NBC News @NBCNews The leading source of global news and info for more than 75 years. Jul. 25, 2019 1 min read

New research shows that the recent rise in global temperatures is unlike anything seen on Earth during the past 2,000 years.

 https://nbcnews.to/32PJWGC  (1/5)

The new studies provide evidence that the rise in global temperatures over the past 150 years has been more widespread than any warming period in the past 2,000 years — a finding that undercuts claims that today’s warming isn’t necessarily the result of human activity. (2/5)

One study shows that the Little Ice Age and other natural fluctuations affected only limited regions of the planet at a time, making modern warming the first and only planet-wide warm period in the past 2 millennia.  https://nbcnews.to/32PJWGC  (3/5)

In the absence of direct temperature information, the scientists looked at data on old trees’ growth rings, layers of glacier ice and the remnants of corals, whose layers have different chemical compositions depending on the temperature of seawater. (4/5)

Since the beginning of the 20th century, the global average temperature has risen by about 2°F

Without concerted efforts to reduce greenhouse gas emissions, the UN says the average temperature could rise an additional 5.4-9°F by 2100  https://nbcnews.to/32PJWGC  (5/5) #NBCNewsThreads

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