...most people find it easier to think about their own health than that of the planet, so emphasising the health benefits of low-carbon activities like cycling instead of driving, or insulating draughty homes, might be a better way to go.

It is useless to talk with those who do not understand one and troublesome to talk with those who criticize from a feeling of superiority. Especially one-sided persons are troublesome. Few are accomplished in many arts and most cling narrowly to their own opinion.

I imagine one of the reasons people cling to their hates so stubbornly is because they sense, once hate is gone, they will be forced to deal with pain.