Study key findings & significance

• Heatwaves unfolding on the bottom of the ocean can be more intense and last longer than those on the sea surface
• This is the first assessment of marine heatwaves along North America's continental shelves
• These bottom heatwaves ranged from 0.5 degrees Celsius to 3°C warmer than normal temperatures and could last more than six months — much longer than heatwaves at the surface

Author quotes

"It's a little less clear if climate change is strongly impacting bottom mar

Study key findings & significance

• Enhanced Asian warming contributes 22% of the wintertime amplified warming over the Barents–Kara Seas,
• Warming over Asia affects poleward atmospheric heat and moisture transport, which “trigger local feedbacks concerning sea ice-albedo feedback and changes in longwave radiation and evaporation, thus facilitating Barents–Kara Seas warming amplification”.
• Their findings “illuminate a new factor from remote lower latitudes affecting Arctic climate change.”

Study key findings & significance

• "Hot lightning" strikes (those lasting much longer than average — from approximately 40 milliseconds to nearly a third of a second) are capable of transferring more heat to flammable things like trees, shrubs or grass.
• Observations of satellite data show that about 90% of US wildfires between 1992 and 2018 started because of these hot lightning strikes.
• A study of the rate of such lightning strikes over the years combined with computer simulations showed that a higher frequency of these lightning strikes