The Kyoto Treaty is effectively dead.

The conventional wisdom that it's the United States against the rest of the world in climate change diplomacy has been turned on its head. Instead it turns out that it is the Europeans who are isolated. China, India, and most of the rest of the developing countries have joined forces with the United States to completely reject the idea of future binding GHG emission limits. At the conference here in Buenos Aires, Italy shocked its fellow European Union members when it called for an end to the Kyoto Protocol in 2012. These countries recognize that stringent emission limits would be huge barriers to their economic growth and future development.

Another myth about "enlightened and progressive Europe, leading the world" falls.

Read this, too:

...climate scepticism is gaining ground in Western Europe. It is even becoming respectable. Many organisations, often cum websites, provide ample information about the views of the climate sceptics, thus breaking the de facto information monopoly of the pro-Kyoto scientists belonging to the 'established climate science community'.

Good. Now maybe we can have a rational discussion about politically and economically realistic solutions.

Space advocates should be looking to geoengineering solutions for global warming. This may be the big market for space activities in this century. I don't mean SPS, but instead such things as constructing sunshades to directly affect global temperatures.

How about sunshades that collect the energy in a useable form as an alternative form of energy.

Of course, the devil is in the details...

Once the CO2 is in the air, the shades needed to counter the extra warming (assuming it's as computed in the models) would be much larger than the SPS collectors needed to supply current energy demands.

This is not to say that SPS is or is not otherwise a good idea.