Banks, insurers and investors with around US$130 trillion (RM540 trillion) or 40 percent of the world's capital at their disposal pledged on Wednesday to put limiting climate change at the centre of their work.

An announcement made at the COP26 UN climate conference in Scotland commits its signatories to assuming a "fair share" of the effort to wean the world off fossil fuels.

A main aim of the COP26 talks is to secure enough national promises to cut greenhouse gas emissions - mostly from burning coal, oil and gas - to keep the rise in the global temperature to 1.5 degrees Celsius.

But how exactly to meet those pledges, particularly...