News outlets starting to understand electric car drawbacks

I was pleasantly surprised upon reading this article about converting hybrid cars to electric plug-ins that CNN is finally starting to acknowledge that electric cars are not the be-all end-all solution some people think they are.

The problem is that the electricity has to come from somewhere, and right now around 70% of the electricity in the US comes from fossil fuels (50% from coal burning, even). It's *better* than using gasoline though for a few reasons - such as that remaining 30% that comes from water, wind, solar, and nuclear (which technically is also non-renewable, but does not have the greenhouse gas problems of fossil fuels instead adding disposal problems). In addition there is economy of scale in power plants - rather than having a small engine and generator inside the car, power plants have a number of large ones. These tend to be much more efficient in terms of both higher power output compared to fuel input, and also lower pollution output compared to fuel input. Because of both of these higher efficiencies, the energy from plants tends to cost less than the energy from gasoline.

So in the end, yes it's good to change your car to electric only, but you will still be paying a higher electricity bill in the place of a gasoline bill, and it's NOT a perfect solution as of yet. Fuel cell cars also aren't a perfect solution, but with more research we'll continue to improve our options.

Greenhouse calculator

Made by the Aussies, it's a greenhouse gas calculator - it determines how much CO_2 you produce in a year (3 tonnes per year per person is the sustainable amount, 24 is the average Aussie), and therefore when you should kill yourself so you don't use more than your fair share.



I produce 15.0 tonnes of CO_2 per year (according to their calculator), and therefore I should die at age 15.4. At least I'm better than average! :-P

Australia bans incandescent bulbs

Awesome, Australia has decided to ban "normal" incandescent bulbs, in favor of CFLs (compact fluorescent lights). [BBC, CNN Video]

The motivation is that saving the electricity will save CO_2 production, and therefore slow global warming. That's great, but I have a couple questions still: (1) What about all the mercury going to landfills? and (2) can physical science teachers still obtain incandescents for demos? :-P