In the northeastern United States, warmer spring temperatures are leading to shifts in the emergence of the blacklegged ticks that carry Lyme disease and other tick-borne pathogens. At the same time, milder weather is allowing ticks to spread into new geographic regions.
Human activities are not direct sources of a lot of ozone, but ozone concentrations increase to markedly unhealthy levels in many areas during the summer. About 30 years ago, atmospheric chemists solved this mystery.
There’s a dramatic recovery underway in New England. Red spruce, a tree species that researchers thought was doomed because of acid rain, is now growing faster than ever, and it’s not the only tree growing like gangbusters.
This week marks the release of the third National Climate Assessment (NCA). Issued to the President and Congress every four years, the report is a scientific analysis of how climate change is affecting our nation, including what we can expect in the future if the escalating problem is not addressed.