Use your clout to persuade governments to donate to and support the cause.
It would be the best use of that money.
Eventually those trees die and rot and rejoin the natural carbon cycle. That's what's so fucked up about the CO2 emissions problem: the carbon we've emitted to the atmosphere (and has been absorbed into the oceans) was previously locked out of the natural carbon cycle as coal, limestone, etc... But burning/creating concrete/ etc has put it back into the active loop.
Any solution has to take the carbon out of that loop permanently if we want to address the greenhouse gas problem, reduce the total amount of carbon in the cycle.
Trees can be the perfect buffer foe our societys transition to a carbon neutral economy.
There are 3 different states of carbon on earth: a solid/liquid from underground (oil, coal, bitumen, etc); in organic matter (trees, animals, plants, etc); and in the atmosphere (CO2, methane, and others).
If we assume that the earth is a closed system and no carbon can leave or enter earth, it means that when carbon gets transformed from its coal/oil state it must either become organic matter or atmospheric gasses — the two other states of carbon.
Conversely, to reduce the amount of atmospheric carbon we must either transform it to organic matter (trees, animals, etc.) or put it back into the ground.
The issue with transforming atmospheric carbon to organic carbon is that we have already reached and passed the global maxima for organic matter during the prehistoric times before human deforestation. At best we could plow down all the cities and civilizations and plant forests in their place and we would reobtain the global maxima of organic carbon again. But even at this point of global maxima of organic matter, we would still have all the carbon which came from coal/oil present in the atmosphere.
Finally there is the natural process of transforming organic carbon to ground carbon, but that takes millions of years — which is a few orders of magnitude too long for us to address the crisis.
This is why artificially sequestering carbon back into to ground is a vital part of addressing climate change.
Forests are really the simple solution. it’s a matter of time frames not net carbon in and out.
They have a perpetual self-sustaining cycle of growing new trees and turning the old ones into soil and burying them under more soil.