We could do that if we'd only replace cow's milk with nut milk and significantly reduce our (egregious) meat consumption. Then we could reforest upto 75% of our fields and it would sure help repair the water cycle / climate instability (among other good things).
If we don't do it, things will get so bad, even west will weep. Good news - it's something even we as individuals can influence. Simply choose plant based food when you can, and help reduce our agricultural impact.
Btw, our fields are not nature - we have too many of them, they are in fact green deserts, it's all deforested land, they don't influence the weather / water cycle in a good way, they destroy biodiversity, they poison everything, even most people have pesticides in their bodies. Our current agricultural / dietary practices are killing the earth.
Sorry, need sleep, so no sources, but somebody has to say it - study it yourself.
Edit: wow, 2 downvotes in less than 1 minute. Let it rain, burger chompers ;)