[tsimionescu]

That is indeed the best you can do, as an individual, for carbon capture. It is also entirely useless, as the amount of carbon a tree sequesters are completely irrelevant at the scale of the problem. The largest tree in the world weighs less than 600 tonnes. That means it captured at best 2200 tons of CO2 - and that is the lifetime total, over 2200-2700 years.