while transient weather variability is playing a key role here, the widespread record warmth across the u.s. so far this year is part of a long-term trend toward more warm temperature records versus cold ones.
while transient weather variability is playing a key role here, the widespread record warmth across the u.s. so far this year is part of a long-term trend toward more warm temperature records versus cold ones.
global warming:40
global surface temperature is subject to short-term fluctuations that overlie long-term trends, and can temporarily mask or magnify them.