I don't know about tofu production processes but growing soy is currently a leading cause of deforestation and natural habitat destruction in S America and there is evidence that it trashes soil quality by mining nutrients out of it too.
We've made tofu at home a couple of times: basically, you soak soybeans, blend them with water, bring it to the boil, simmer it for half an hour, add a coagulant (we used lemon juice), sift out the solid bits and then press them together. It's tedious work that we're glad to outsource.
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I've been veggie for just over two years, and still crave meat pretty much every day. Mmmmm, delicious protein-rich animal flesh.
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We've made tofu at home a couple of times: basically, you soak soybeans, blend them with water, bring it to the boil, simmer it for half an hour, add a coagulant (we used lemon juice), sift out the solid bits and then press them together. It's tedious work that we're glad to outsource.