There are two reasons why using the core framework to form their policy as Texas P & W are doing will lead to continued desertification – first objectives never deal with complexity (of nature, society and economy) that is essential to successful policy. Secondly there is, in the core framework, no tool that can reverse desertification – no aspect of technology can ever ensure rapid biological decay essential in such environments. And the other two tools resting land and use of fire both lead to desertification. So in your case shooting all the burros can only cause conflict (as it is doing) and can never solve the problem. Hence my guarantee that desertification will continue. I do not want to spend time on it here but it is also the reason why the solutions you are proposing will disappoint you – you too I note have an objective and objectives, without holistic context, simply do not work in policy.