[LanceH]

Because people actually care about other people.

Climate change is something which infringes on another's rights and even in Libertarian circles government action isn't strictly out of the question.

[dfgdghdf]

Excluding the anarchist right, climate protection is exactly where a Libertarian would deploy government.

[pogorniy]

How come that our policies and practices contradict the idea that people care about each other?

I see a lot of compassion and action on individual level. But at society we leave more people behind. And as people who are capable to act (those who have enough both mental, time and other resources) tolerate such way of things maybe it's aligned with their system of values (i.e. capitalism and individualism).