Global temperatures hit 4000-year high, rate of increase fastest in 11,000 years

“For, behold, the day cometh, that shall BURN AS AN OVEN; and all the proud, yea, and all that do wickedly, shall be stubble: and the day that cometh shall BURN THEM UP, saith the LORD of hosts, that it shall leave them neither root nor branch.” Malachi 4:1

Global temperatures hit 4000-year high, rate of increase fastest in 11,000 years

A new study published Mar. 8 in the journalScience reports that global surface temperatures are now the hottest that they have been in the last 4,000 years, with the rate at which they are rising being the fastest seen in over 11,000 years. The study projects that temperatures may rise by as much as 11.3 degrees Fahrenheit (6.3 degrees Celsius) by the end of this century, well above the generally accepted 4 degrees Celsius that scientists previously agreed we were on track to reach without intervention.

“We were on this downward slope, presumably going back toward another ice age,” 

“When you just look at one part of the world, the temperature history can be affected by regional climate processes like El Niño or monsoon variations,” noted Clark. “But when you combine the data from sites all around the world, you can average out those regional anomalies and get a clear sense of the Earth’s global temperature history.”

“What is most troubling,” Clark said, “is that this warming will be significantly greater than at any time during the past 11,300 years.”

“During the warmest period of the Holocene, the Earth was positioned such that Northern Hemisphere summers warmed more,” Marcott said. “As the Earth’s orientation changed, Northern Hemisphere summers became cooler, and we should now be near the bottom of this long-term cooling trend – but obviously, we are not.”

“The last century stands out as the anomaly in this record of global temperature since the end of the last ice age,”

“This research shows that we’ve experienced almost the same range of temperature change since the beginning of the industrial revolution as over the previous 11,000 years of Earth history – but this change happened a lot more quickly.”

 

“The Earth’s climate is complex and responds to multiple forcings, including CO2 and solar insolation,” Marcott said. “Both of those changed very slowly over the past 11,000 years. But in the last 100 years, the increase in CO2 through increased emissions from human activities has been significant. It is the only variable that can best explain the rapid increase in global temperatures.”

 

Using data from 73 sites around the world allows a global picture of the Earth’s history and provides new context for climate change analysis

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