You can't outrun a bad diet. Sure we can plant a ton of trees to recapture carbon, but we also need to cut down emissions.
With current tech, we could drastically reduce emissions by moving to a mix of nuclear (the modern, safe kind) for baseload plus wind and solar for peak, but it's going to take few decades to build it all out, and during the intervening period we have a lot of excess CO2 we need to sequester.