We are all "green." We love nature. We will do all we can to save it from being ravaged by mankind. But there is a problem. As Einstein remarked “Raffiniert ist der Herr Gott, aber boshaft ist er nicht,” roughly translated as "The Good Lord may be subtle, but He is not malicious."
This should be a warning that you must at all costs avoid being what I call a "galloping green." There is no point in plunging ahead when you think you have spotted a problem. Just remember, there is always a simple, straightforward solution to virtually every problem, and that solution is invariably wrong. You have to think before you act. Gut feeling for nature could do damage, not solve the problem!
There is a wonderful example in the latest Nature journal, http://www.nature.com/news/gridlock-over-italy-s-olive-tree-deaths-starts-to-ease-1.19939. Down in Puglia, the heel of the boot which is Italy, some olive trees started dying. The plant pathologists identified a foreign bacterium, Xylella fastidiosa, as the culprit. They recommended uprooting the infected trees and everything within 100m of it.
But the local green movement was against this. They "knew" all about diseases of olive trees, and were not going to allow 1 000 year old specimens to be uprooted. They chained themselves to the infected trees to prevent them being taken down; they went to court to stop the "massacre." They convinced the Puglian judge that the problem was fungal, not bacterial, and that they were expert in handling olive trees attacked by fungi. The judge believed them.
And so the problem has spread through the whole of Puglia, some 200 000ha of olive groves, and is moving steadily north. It has taken six months, but the judgement has been reversed - probably not too late to save the rest of Italy's crop.
But Puglia is doomed, dead trees everywhere. And the bacterium seems to have spread - to coastal Spain, across the Adriatic to Greece. All because the tree huggers thought they had the answer. Sometimes one thinks green is the colour beloved by the Devil himself!