Greenhouse gases are being produced by corporations and such and such
Greenhouse gases make the planet hotter especially the tundra and the arctic
Warming temperatures could result in the permafrost melting which would release greenhouse gases which then speeds up global warming
The permafrost is layer of dead frozen plants and soil below the surface and makes it hard for plants to grow. For example one distinctive factor of the tundra is that it’s mostly treeless because the tree roots can’t root