We’re committing ourselves to many thousands of years of a warmer world if we don’t take action quickly. We’re pumping carbon dioxide into the atmosphere at a rate nine to 10 times higher than the GHG emitted during the Paleocene-Eocene Thermal Maximum (PETM), 56 million years ago

Total human carbon dioxide emissions could match those of Earth’s last major greenhouse warming event in fewer than five generations, new research finds. A new study finds humans are pumping carbon dioxide into the atmosphere at a rate nine to 10 times higher than the greenhouse gas was emitted during the Paleocene-Eocene Thermal Maximum (PETM), a global warming event that …

Doubling of Arctic methane with earlier spring rains from warming in the Arctic

Arctic Bogs Hold Another Global Warming Risk That Could Spiral Out of Control: As warming brings earlier spring rains in the Arctic, more permafrost thaws, releasing more methane in a difficult-to-stop feedback loop, research shows. By Phil McKenna Inside Climate News, FEB 19, 2019 The study appears in the journal Geophysical Research Letters. A doubling of the rate of methane released in the Arctic …

January 2019 climate research

WRI, Jan 2019 Every month, climate scientists make new discoveries that advance our understanding of climate change’s causes and impacts. The research gives a clearer picture of the threats we already face and explores what’s to come if we don’t reduce emissions at a quicker pace. Our blog series, This Month in Climate Science, offers a snapshot of the month’s significant …

Climate thresholds closer than we think: oil-moisture variability notably reduces the present land carbon sink, and their results show that both variability and drying trends reduce it in the future

Soil-moisture variability notably reduces the present land carbon sink, and their results show that both variability and drying trends reduce it in the future Julia K. Green, Sonia I. Seneviratne, Alexis M. Berg, Kirsten L. Findell, Stefan Hagemann, David M. Lawrence & Pierre Gentine. Large influence of soil moisture on long-term terrestrial carbon uptake. Nature, 2019 DOI: 10.1038/s41586-018-0848-x  Columbia University School of Engineering …

2018 climate findings

From Carbon Brief January 2019 Warmest year on record in the oceans Last year was the warmest on record for the heat content of the world’s oceans. Ocean heat content (OHC) has increased by around 370 zettajoules – a billion trillion joules – since 1955. The heat increase in 2018 alone compared to 2017 – about 9 zettajoules – is around 18 times …

Meteorologists suggest 1720-1800 might serve as a better climate “starting line”. And we are 1.1 C above the 1850-1900 average.

New temperature ‘starting point’ sought by Jonathan Amos BBC Science A depiction of a 17th Century Frost Fair at Temple Stairs on London’s Thames River Scientists are seeking to define a new baseline from which to measure global temperatures – a time when fossil-fuel burning had yet to change the climate. At the moment, researchers tend to use the period 1850-1900, and …

Study of Antarctic sea ice collapse warns of potential 10-foot sea rise, with rate of ocean warming up 50% since 1991.

Gigantic hole two-thirds the size of Manhattan discovered in Antarctic glacier, Sheena McKenzie, CNN, January 31, 2019 (CNN) A massive cavity two-thirds the size of Manhattan has been discovered growing in an Antarctic glacier, signaling rapid ice decay that has shocked scientists. The huge hole — measuring almost 1,000 feet (300 meters) tall — was found growing at an “explosive rate” at the …

US & Canadian glaciers melting 4x faster than a decade ago

Satellite images show glaciers in US and Canada, excluding Alaska, are shrinking four times faster then in previous decade, by Emily Holden in Washington, The Guardian, Sat 19 Jan 2019  The Klinaklini glacier in British Columbia. Photograph: Brian Menounos Glaciers in western North America, excluding Alaska, are melting four times faster than in the previous decade, with changes in the jet stream exacerbating the …