First, I don't disagree with reducing a carbon footprint but it has been shown in a number of reports that removing all personal use combustion engines wouldn't effect the carbon footprint. The largest part of the carbon footprint is living creatures, but that isn't something to consider changing. The second runner up is industry, and the cleanest with nearly 0 emissions a year is nuclear (only emissions are from backup diesel and gas generators). To consider other forms of green energy product you need to also consider how they are made. Wind mills and solar panels need plastics and a large amount of them, the more plastics produced is just as bad if not worse for the environment. Plus wind mills and solar panels couldn't meet the needs of society, especially if we need them to power transportation as well.
Hope this helps open some peoples minds, granted mine is open and I believe the technology is growing it's just the pros and cons need to be weighed justly.
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