Study key findings & significance

• From 1988 to 2018, hurricanes and other tropical cyclones in the U.S.

Study key findings & significance

• Severe lake heat waves in the world's largest lakes are twice as likely to occur, on average, as they were during a pre-industrial climate.
• Nearly all severe lake heat waves occurring over the past 20 years were due in some part to climate change, and could become between three and 25 times more likely by the end of the century.

Author quotes

"What really stood out was the magnitude of human contribution: Most of the severe lake heat waves we looked at had a significant anthropogenic imprint...the

Study key findings & significance

• The November 2018 Woolsey Fire in Southern California’s Los Angeles and Ventura counties left the adjacent coastal waters with unusually high levels of fecal bacteria and sediment that remained for months.
• Scientists combined satellite imagery, precipitation data, and water quality reports to assess two standard parameters for coastal water quality after the fire: the presence of fecal indicator bacteria and the turbidity, or cloudiness, of the water.
• The post-fire monthly average of total coliforms – a large group of fecal

Study key findings & significance

• Modern global sea level rise patterns emerged along with the Emancipation Proclamation in 1863.
• The sea level rise coincides with the increase of coal use during and after the U.S.

Study key findings & significance

• Plants are leafing out earlier than ever in recent decades in northern regions, including the U.S., Europe, and China, due to climate change.
• The researchers attribute the early greening to two key factors: warmer temperatures and fewer rainy days.
• Scientists already knew that warmer temperatures due to climate change had caused plants to leaf out sooner in the year in recent decades, but these new findings show that fewer rainy days are also a big reason why.

Author quotes

“This contrasti