What would happen, if we cut down all of the trees?
Everybody Dies™:as the national maple sirup reserves run out the Canadians get angry, God knows what could happen…Or… Somebody Dies™ ;)Some of the cutters die (statistically it’s quite a dangerous work)Rainforest ecosystems go to hell (and with them some big scale climate stuff), some of the ecosystems probably disappearing from the planet (they struggle to regenerate)CO2 and oxygen levels could bump up and down a little, but it’s hard to tell, the rapid growth of smaller species could attenuate thatIf you let the forest grow back you will have most of them back in 30–40 years (a lot of species grow back from the stump), without the giant trees, but still nice forestsA lot of species will go extinct: they need huge trees to survive, I’d guess some of these have medical use for the locals, some of them could feel bad too, we’d loose a lot in terms of biodiversity and knowledge and beautybut in 200 years only a specialist could tell that it happened.If you keep cutting them, that would be a problem.Forests are the natural state of many drylands, we have to continuously do something to keep the landscape in a different shape.P.S. The original question was about cutting all the trees :)