World leaders attending the COP26 U.N. climate summit should focus not only on abandoning fossil fuels but also on setting ambitious goals to end deforestation — and expand funding and rules to drive forest protection, environmentalists are urging.

More than 100 world leaders have confirmed they will attend next month's COP26 U.N. climate summit in Glasgow in person.

One key aim for the conference is moving finance out of polluting fossil fuels — especially coal — which are responsible for the lion's share of climate-heating emissions.