Scientists have high confidence about global temperature trends over recent decades because those observations are based on a massive amount of data. (ucsusa.org)
A: Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human - induced heat - trapping gases. (climatecommunication.org)
Even though the total amount of snow has declined in parts of the world over recent decades, there have been an increasing number of very heavy storms. (realitydrop.org)