Re: Let me be the first to say..
The one-eyed concentration on global warming by commentards, deniers and Lewis Page is starting to piss me off. There are other good reasons for doing something about increasing CO2 levels that are being ignored.
1) CO2 emissions are increasing the acidity of the oceans, which is definitely harmful to creatures with carbonate skeletons. This is known to be harmful to reefs and plankton, so will have an impact on food supplies, DMS emissions and (possibly) oxygen levels. Plankton make DMS and photosynthesize oxygen. DMS has a role in controlling cloud cover. As we're hell bent on deforestation (trees are good oxygen sources) we may need all the photosynthetic plankton we can get.
2) The Northern hemisphere jet stream is being disrupted by something: this seems to have a lot to do with the recent weather changes, droughts, etc. that afflict the northern hemisphere. What's causing this? For all I know it could be connected with oceanic heat content changes.
I'd like to see more attention paid to these two effects and how they are linked to fossil fuel use and a little less to the rate of change of global temperature.