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:276
in the scientific literature, there is an overwhelming consensus that global surface temperatures have increased in recent decades and that the trend is caused mainly by human-induced emissions of greenhouse gases.