It's absolutely not acceptable for people to argue that, if we are going to do anything about climate change at all, well, the responsibility lies solely with the individual.
The forces that are in play on climate change essentially revolve around the generation of power, the transportation of goods and services and people, and the sorts of materials that we use to fuel the whole of our civilisation.
Climate change is such a huge issue that it requires strong, concerted, consistent and enduring action by governments.
And given that there's been probably a ten-fold amount of information about terrorism through the media than there has about climate change; I think that's quite an interesting statistic.
Climate change is also clearly a matter of huge interest and concern for the scientific community.
Look, very clearly there are things that need to be done urgently in relation to climate change, and of those the most obvious is to have an enforceable and equitable arrangement delivering deep cuts in emissions into the middle of the century.
Once you start to look into the guts of climate change you find that just about every scientific institution in the world is conducting research on the issue.