I read your press release on this subject with interest. However it does not say anything about greenhouse gas changes that result directly from the replacement of forests with agricultural land. Forests are relatively efficient at converting carbon dioxide to oxygen; agriculture is less so. Therefore a replacement of forests with agricultural land would increase carbon dioxide over and above any industrial release of this greenhouse gas into the atmosphere. This would tend to counteract the cooling effect you report. Did your simulation take this into account? If it did, your press release should say so.
Also, the word "prove" in your title is overstated. Scientists do not "prove" anything -- the scientific method can only disprove, and eventually arrive at a consensus that what we are unable to disprove must be true. A single simulation, embodying all the limitations and biases of a single group of researchers, cannot prove anything.
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