The goal to keep the rise in temperatures under 1.5C is failing badly according to a UN review of nations' carbon-cutting plans ahead of next week's COP30 summit.

Only 64 countries have submitted new pledges to limit planet-warming gases this year, despite all being required to do so by now as part of the 2015 Paris climate agreement.

While the UN review shows progress in curbing emissions over the next decade the projected fall is not enough to stop temperatures surging past global targets.

The report underlines the scale of the task facing world leaders who head to Belém in northern Brazil next week for the COP30 climate gathering.

Ten years after the Paris climate pact was agreed in 2015, the efforts of countries to restrict the rise in global temperatures are under renewed scrutiny.