Observed Southern Hemisphere summer and fall trends of tropical expansion are well captured in model simulations of the late 20th and early 21st centuries, consistent with the roles of increasing greenhouse gases and stratospheric ozone depletion in driving poleward circulation shifts during these seasons.
Regional model simulations suggest that post-1980 warming in both the ocean and atmosphere resulted in an estimated 20% increase of the accumulated precipitation for Hurricane Harvey.
Researchers conclude that changes in sensible heat transfer and evaporation fluxes — in response to strong regional trends in sea ice cover — are becoming increasingly consequential to Arctic climate variability and change.
Climate change will drive more frequent and extreme summer heat waves in the western US by late the 2020s, the Great Lakes region by the mid-2030s, and in the northern and southern Plains by the 2050s and 2070s, respectively.
The most extreme increases in the oxygen 18-to-16 ratio over the last fifty thousand years occur immediately after Heinrich events, strongly suggesting that tropical rainfall shifted south in response to Heinrich events.
As the decadal ENSO cycle transitions to a warm phase, a new study expects accelerated global warming and a “hiatus” in Hadley Cell expansion.
The Arctic sea ice decline may explain the suggested slow-down of the Atlantic meridional overturning circulation and the persistence of the Warming Hole.
A new study helps clarify how past and future coastal sea level changes are related to local winds and large-scale ocean circulation.
Researchers have developed a state-of-the-art drought and wildfire prediction system, showing the multi-year predictive skills of drought and wildfire conditions beyond the typical timescale of seasonal climate forecast models.
Ocean melting of marine-terminating ice sheets poses a profound threat to the global coastal environment with approximately five meters of sea level rise locked up in the ice sheets around the West Antarctic region.
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