Using gas boilers to heat homes could be abandoned as governments are set to face renewed calls for dramatic action to tackle climate change.

A major report on the impact of global warming, to be published on Monday, will warn about the speed and scale of measures required to keep temperature rises to a level beyond which many vulnerable countries say their survival is at risk.

Limiting global temperature rises to 1.5C above pre-industrial levels would put an end to burning fossil fuels to generate power.

This would mean replacing petrol and diesel cars with electric vehicles or other clean alternatives and scrapping the use of gas boilers in homes in just a few decades.

Scientists and representatives of 195 governments who met in South Korea as part of the United Nations' Intergovernmental Panel on Climate Change have approved the report, which will prompt new calls for dramatic and urgent steps to cut emissions to zero by 2050.

The world is already experiencing around 1C of global warming, and events such as floods, storms and heatwaves like the one in the UK this summer have become increasingly likely as a result of climate change, according to experts.

Letting temperature rises climb more than 1.5C will lead to sea level rises, an increase in heavy rainstorms and heatwaves, more people facing water scarcity and drought, greater spread of diseases and more economic losses.