US President Joe Biden has committed to cutting methane emissions by 30 per cent by 2030 as part of a global pledge.

He also announced two new proposed US rules in remarks at day two of the COP26 climate summit in Glasgow, Scotland.

The world leaders are gathered to discuss efforts to keep global warming below 1.5 degrees Celsius by 2030 to avoid devastating impacts of climate change.

Biden says more than 80 countries have signed up to the global methane pledge.

Methane is produced when living things decompose and is also in natural gas.

It persists for just a short time in the atmosphere but is a much more potent global warming gas than CO2.

US and EU leaders say tackling the potent greenhouse gas is crucial to keeping warming limited to the targeted temperature.

The US President further announced a new initiative to work with farmers and ranchers on the issue.

US President Joe Biden.