Smoke from large fires can travel across much of the planet, changing the weather, Israeli scientists say.
While the human and economic toll have been enormous, the fallout from the virus also seriously damaged nature.
Wild pigs can support higher diversity ecosystems and are not just nuisances and pests.
As much as 33.4 billion tons of forest biomass could be badly affected by a changing climate.
Climate change is accelerating, yet it isn't too late yet if we are to keep warming to under 1.5 Celsius.
Over the years more than 200 wildlife rangers in the Virunga National Park have lost their lives in the line of duty.