Eh, it's hard for me to not be cynical about this given the number of times I've heard this exact headline throughout my life. When I was a little kid I saw on a TV program that "these scientists are working on bring back wooly mammoths and experts agree that we could see living wooly mammoths in the next 3 years".

> Can mammoths really reverse climate change?

> Colossal say that they want to 'rewild extinct species to their original habitats so they can revitalize lost ecosystems for a healthier planet'.

> It is claimed that woolly mammoths will help to fight climate change by restoring the vast grassland steppes which once encircled the Arctic pole but which changed to forest when the mammoth went extinct.

> 'One of the benefits of grasslands over tundra or forests in the high Arctic is they are really good carbon sinks,' explains Victoria. 'During the summer months the grasses grow high before dying back in the winter. But because of the cold temperature, they don't degrade. Every season's growth is stored in the ground. That is why the permafrost is a massive carbon sink.'

> It is argued that the giant herbivores such as mammoths maintained these open grasslands by keeping encroaching forests at bay, and as a result helped cool the planet.

That seems like pure nonsense and perhaps a way to market their goofy experiment to gullible journalists.