New national pledges to tackle climate change this decade will lead to around 2.4 degrees Celsius of global warming this century, far above safe levels, analysts predict.

Climate Action Tracker (CAT) said on Tuesday that the promises by countries attending the UN summit in Glasgow to cut greenhouse gas emissions by 2030 would still allow the Earth to heat up far beyond the United Nations target by 2100.

"Even with all new Glasgow pledges for 2030, we will emit roughly...