Fight back where you can. Maybe we can't stick forks in the pilots or the people running these programs (although, if you happen to know anyone who is flying for this, urge them to walk off the job). But we can help neutralize their effects in areas, like the soil. Part of their objective is to collapse our food supply so that the only choice we have is to eat Monsanto's poisonous GMO. If you have land, try phytoremediation to help protect your food supply. Sunflowers are wonderful at phytoremediation. Filter your water using a system capable of removing aluminum. If you can put a filter on your home's air intake, try to do this. We can't totally eliminate the problem without stopping the spraying, but short of that, do what you can to take the successes away from them by any means you can.