1) An idea that is gaining some traction, for reducing global warming, is geoengineering, and this article talks about it.
An excerpt:
“Geoengineering may be a way to solve this collective action problem. Several different types of interventions have been discussed and modeled. Tom Wigley, a scientist at the National Center for Atmospheric Research, discussed how injecting ultra-fine sulfur particles into the stratosphere or spraying clouds with saltwater to increase their reflectivity could reduce climate change. Estimates for how much a solution like this would cost are not definitive, since research has been limited and no field testing has been done; but if geoengineering proves feasible, it would almost certainly be far less expensive—and would require less extensive global cooperation—than GHG [Greenhouse Gas] mitigation.”
2) The market is responding the the high cost of the gasoline powered internal combustion engine and as it does, the rise of electric cars speeds up, as this article notes.
An excerpt:
“This March, American entrepreneur Elon Musk started production of his electric sports car, the Tesla. This car accelerates from 0 to 60 miles per hour in four seconds, tops out at 125 mph, and has a range of 220 miles. The $110,000 price tag limits the Tesla to the wealthy, but mass-production models are in the works. General Motors has committed itself to rolling out its electronic vehicle, the Volt, by 2010. Toyota plans a successor to its popular Prius hybrid.
“Recent cost comparisons by Deutsche Bank's auto analysts suggest electric cars will be cheaper to operate than conventional vehicles. Fuel costs per mile for gasoline-fueled cars are $0.27 in Germany, $0.24 in Britain, $0.17 in Brazil and $0.11 in the U.S., with differences driven by local fuel taxes. For electric vehicles, the cost per mile is a mere $0.02. Adding in a battery amortized over the life of the car, the cost is still only $0.10. Batteries will be expensive, at least in early years, but electric cars won't need costly engines or complex transmissions like today's autos.”