Global warming Increase in average global temperatures of the atmosphere and oceans over the past 100 years. (slideplayer.com)
As a result all layers warm with the amount of warming increasing as you move towards the surface. (realclimate.org)
Even a combination of approaches could not stop global warming increasing by a lot more than 2 °C by 2100 under the notorious «business as usual» scenario. (climatenewsnetwork.net)