Global warming of 1.5°C – An IPCC Special Report

“An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty

. Understanding Global Warming of 1.5°C4
A.1 Human activities are estimated to have caused approximately 1.0°C of global warming5
above
pre-industrial levels, with a likely range of 0.8°C to 1.2°C. Global warming is likely to reach 1.5°C
between 2030 and 2052 if it continues to increase at the current rate. (high confidence) (Figure
SPM.1) {1.2}
A.1.1 Reflecting the long-term warming trend since pre-industrial times, observed global mean surface temperature (GMST) for
the decade 2006–2015 was 0.87°C (likely between 0.75°C and 0.99°C)6
higher than the average over the 1850–1900
period (very high confidence). Estimated anthropogenic global warming matches the level of observed warming to within
±20% (likely range). Estimated anthropogenic global warming is currently increasing at 0.2°C (likely between 0.1°C and
0.3°C) per decade due to past and ongoing emissions (high confidence). {1.2.1, Table 1.1, 1.2.4}
A.1.2 Warming greater than the global annual average is being experienced in many land regions and seasons, including two to
three times higher in the Arctic. Warming is generally higher over land than over the ocean. (high confidence) {1.2.1, 1.2.2,
Figure 1.1, Figure 1.3, 3.3.1, 3.3.2}
A.1.3 Trends in intensity and frequency of some climate and weather extremes have been detected over time spans during which
about 0.5°C of global warming occurred (medium confidence). This assessment is based on several lines of evidence,
including attribution studies for changes in extremes since 1950. {3.3.1, 3.3.2, 3.3.3}”

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About David Lindsay Jr

David Lindsay is the author of "The Tay Son Rebellion, Historical Fiction of Eighteenth- Century Vietnam," that covers a bloody civil war from 1770 to 1802. Find more about it at TheTaySonRebellion.com, also known as, DavidLindsayJr.com. David Lindsay is currently writing about Climate Change and the Sixth Extinction., as well as singing and performing a "folk concert" on Climate Change and the Sixth Extinction. He can be reached at daljr37(at)gmail.com.
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