Help the farmers
We can do a lot to help the farmers:
We can teach ourselves about the most climate-friendly foods, and choose to buy them in place of the more climate-damaging foods.
We can lobby our politicians to give financial support to farmers for training and equipment to move to proven climate-friendly farming techniques.
Land which is not currently suitable for conventional arable techniques can have many climate-friendly uses which support good new livelihoods for farmers.
'Agroforestry' is a useful search term ...