39 Ways to Save the Planet

Siberian Rewilding

During which epoch did humans start to colonise the whole planet, including the Russian steppe?

15,000 years ago there were how many trees globally?

Of the animals native to the subarctic which remained after humans entered the region?

In which ways are trees detrimental to the ecosystem and accelerate climate change in northern latitudes?

Permafrost can form to a depth of hundreds of metres, but the most critical in terms of climate change are the top __metres? 

Pleistocene Park recreates which biome that existed during the last glacial maximum (~15,000 years ago)? (hint: 2 words)

The ecosystem of the mammoth steppe grasslands collapsed due to the loss of which group of animals?

Grazing 10% (2 million km2 of the subarctic) could lead to a net reduction in our GHG emissions of __%?