Too much gets said about how great electrically powered vehicles are, but they're only zero emission at point o suse. Not enough gets said about where the electricity to charge those batteries comes from - unless it's wind/solar/wave, then it's actually quite a lot of emissions in the overall system.
Why do you believe that? It seems every Slashdot article about electric vehicles has someone making this point. However, converting all of the world's power grids to renewable energy only solves 30% of the problem. By converting transportation to electricity and converting the power grids to renewable energy eliminates the majority of carbon emissions. We should do both.
You appear to be completely dismissing the value of electric vehicles because our electric grid doesn't have enough renewable energy. However, we have the resources to tackle both of these issues at once, and it seems to me we are succeeding.
Slashdot is not ignoring renewable energy, but electric transportation is important too.