This reblog from WUWT would seem to back up Makarieva et al, who say forests are vital to local climates. As well as the water they evaporate, they also release more aerosols as temperature rises which assist cloud seeding by building the size of cloud condensation nucleii.
Recall a couple of days ago that I posted on the aerosols released by trees: Those dirty trees: why hasn’t the EPA called for trees to be regulated?
Now, from the International Institute for Applied Systems Analysis comes a cause-effect for climate.
Plants moderate climate warming
As temperatures warm, plants release gases that help form clouds and cool the atmosphere, according to research from IIASA and the University of Helsinki.
The new study, published in Nature Geoscience, identified a negative feedback loop in which higher temperatures lead to an increase in concentrations of natural aerosols that have a cooling effect on the atmosphere.
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Tallbloke's Talkshop 
I thought this was well known decades ago.
It is part of the reason I have said many times that there are plenty of aerosols already in the atmosphere such that the Svensmark theory about more clouds from more cosmic rays is unlikely.
It is also known that changes in micro organisms in the oceans can change the amount of aerosols in the air above.
No joined up knowledge in climate science apparently.
Just thousands of over narrow specialists constantly reinventing the wheel.
they also release more aerosols as temperature rises which assist cloud seeding
Which creates more rain and helps the forest to perpetuate itself. The tricky bit is re-establishing a lost forest, such as the ones that disappeared during Roman times on the Mediterranean coast of Africa.
JM: Correct. Tropical forests particularly need to be protected from over-exploitation.
TB, for those who are not aware of Dr Anastassia Makarieva and colleagues’ work here is a link ( http://www.bioticregulation.ru/pubs/pubs2.php) to the publications pages of their website. Most of the papers are available for download. I am sure Dr M would provide copies of peer reviewed papers where there are only abstracts on request. Dr M is a nice person willing to enter into correspondence but it should be noted she is a physical scientist with it appears limited knowledge of engineering science and experimentation..
In case you’ve never heard of this, I will put it here. All organisms alter their local environment to enhance their own survival. From microorganism to the largest macro-fauna and macro-flora; with the microorganisms having done the largest ‘terraforming’ of them all.