Can planting trees help reduce Climate Change ?

From Greta Thunberg to Donald Trump and airlines to oil companies, everyone is suddenly going crazy for trees.

The UK government has pledged to plant millions a year while other countries have schemes running into billions.

But are these grand ambitions achievable? How much carbon dioxide do trees really pull in from the atmosphere? And what happens to a forest, planted amid a fanfare, over the following decades?

How many will the UK plant?