firslty, humans'd have to focus the real reason of global warming to have good solutions.
-about CO2 reason: 2 years ago a 2,000 year old alpine pass (the time of the ancient romans) was found after a swiss glacier melted, but 2,000 years ago there was no greenhouse gas. it's a visible test -> CO2 reason isn't sure, even because there's a real reason scientifically speaking!
-real reason: First law of thermodynamics states that energy can neither be created nor be destroyed but can be transformed from one form to another -> biomass energy comes from solar energy, a part of solar energy's transformed to biomass energy so wood production(etc...) removes solar energy from the environment -> it's against global warming, the loss of a lot of forests in the past years is a real reason for global warming.(fires and bacterial decompositions return heat to the environment)
-real solutions...
1) palm oil for diesel: this palm's an high growing tree that produces a lot of wood. furthermore, in plantations the tree always grows, it does not die(it doesn't decompose) like in nature but it is cut and replanted, but after the vegetative cycle trunks're used for furnitures etc...-> wood's stored! another aspect to consider is the possible breeding based on waste fronds(about 10 t/ha).
2)pellet from agricultural residues for heating/(new steam engines etc...)
3) wood from forest crops for industrial use etc... to store wood. breeding(based on leaves. goats're an example) in symbiosis with these crops
so it's REALLY possible to contrast global warming if good humans want.