If ever there was a religion that worshiped and served the creature rather than the Creator (Romans 1:25), Evolution would be that religion. Evolutionists are notoriously vocal environmentalists, as the meme to the left shows. The meme itself is so loaded, it's a wonder it didn't explode the second its creator hit "send". Let's unpack it a bit.
The first major assumption (which is actually two, but I'll merge them) is that theists are not as likely to care about the world, whereas atheists do. In reality, this isn't the case. In fact (and yes, I'm aware this is only an anecdote), I remember one very outspoken atheist and environmentalist who actually left his Subway drink on a table when we were only a few meters from the bin. I was the one who picked it up, after which I called him out for it. This guy isn't the only one with a habit of littering. Despite being a secular area, litter can be found all over the streets. There isn't much debate over who created the earth in that town, but there isn't much drive to clean it up either.
The second major assumption is that there necessarily has to be a choice. Why can't you be a Christian and think the four pictures in meme are, put simply, tragic? It's like saying you have to choose between being a swimming instructor and a lifeguard. One teaches, the other acts, and you can be one on its own, or both at the same time. Saying otherwise is a false dichotomy.
Which leads us to the most important major assumption: Creationism isn't as important. In reality, Creationism serves two major functions. The first function will hit close to home to all environmentalists: If there is no God, there is no hope. The earth itself is an accident with no purpose (the absence of purpose being the very definition of an accident). Therefore, you may have motive to care for it, but there's no point, and other people might recognise that. By contrast, if God really did create this Earth, really does expect us to care for it, and really will hold us to account for what we do with it, that's a pretty good reason to care for it, is it not? Put it this way: Who are you more likely to want to please? Your Landlord, or a hurricane? Any sane person would say the Landlord! If you willingly damage your Landlord's property, he can evict you, but a hurricane doesn't care what you do to the mess it makes.
But Creationism serves a far more important purpose: It serves as a foundation for the Gospel. The Gospel is the doctrine that we have all sinned against our Creator, and He will hold us accountable for it, but whereas He could have punished us for eternity in Hell, He chose instead to punish Jesus on the cross for it so that we can go to Heaven through faith in Him.
This Earth is temporary. It was beautiful at first, but then we sinned, it fell into chaos, and now look at it. It's a mess. What's more is that it's going to end! We can pick up as much litter as we want, we can conserve as many species as we want, we can plant trees, create clean sources of energy, de-clutter the oceans, and all of those things are good for our time, but the fact is the earth won't last forever. The next one will. But you won't be on it unless you're adopted by the One who created both. Therefore, the question as to who created the earth is far more important than any feeble attempt at conserving it. So, go ahead. Clean up the planet, I beg you. But more importantly, turn to its Creator, because there is no landfill site on the earth that even comes close to the tragic fate of those who reject the forgiveness that only Jesus can offer.