The sixth report of the Inter-governmental Panel on Climate Change (IPCC) says the world is on track to hit 1.5 degrees celsius in less than nine years from now, a decade earlier than projected. Sea levels rose 3.7 mm per year from 2007 to 2018 and heat waves have become more intense and more frequent across land since the 1950s while cold waves have become less frequent and less severe.
Cities because of dense infrastructure have become hotspots and there is not enough vegetation or water to dissipate the heat. In cycles of every 10 and 50 years, there will be periods of extreme heat, extreme rain and drought. Global warming can be limited by the end of this century but it will take drastic and immediate cuts in burning fossil fuels and other activities emitting greenhouse gases.