As set out by NASA, global mean temperature has shown a growing trend over the last few decades. 2016 was the hottest year on record since 1880, followed by 2017, 2015 and 2014.
ICE MELTING
GREENHOUSE GASES
According to climate scientists, greenhouse gas concentration in the atmosphere has overcome the 400 ppmv, marking a first-time over the last 800,000 years.
