In my personal belief, the big problem with climate change is getting people to understand the magnitude and scale that we're dealing with. If you buy a vehicle that gets 35 miles to the gallon, that means nothing; it's not enough. We need to make changes across society and in every piece of the energy pie.
Some kids win the lottery at birth; far too many don't - and most people have a hard time catching up over the rest of their lives. Children raised in disadvantaged environments are not only much less likely to succeed in school or in society, but they are also much less likely to be healthy adults.