Some out there may believe that the future holds certain inevitabilities and that one of them is that we're screwed. I think you know what I mean by that but just to clarify, picture all the Hollywood movies that have been springing up about the end of the world, throw in something from the bible about God's wrath and you'll have an idea of what it means to be screwed.
To me, what's in the past is done but the future is unwritten. Yeah, we have a trash vortex the size of Texas in the North Pacific (link). Holy shit. It reminds me of The Nothing from the Neverending story. What can we do? The Industrial Revolution began just over 200 years ago. It didn't happen in a day. And if you had asked someone in 1800 if they thought that there'd be a way to instantly communicate with millions of people (OK I know we only get around 200 hits a day, but the potential is there) they'd not be able to fathom it. Change doesn't happen overnight and we're not going to clean up the ocean overnight. Maybe there won't be enough people who want to and maybe industry will keep on marching, keep on polluting in the ways it has been. I don't know. But I'm not going to sit back and accept it as an inevitability. There's such a thing as believing in the improbable. There's such a thing as one person or one act making a difference that changes the world; There are countless examples throughout history. I can't see 200 years into the future. But today I saw some of the Hawaiian Islands ban plastic bags (link). What's that going to do? I don't know, but it gives me hope for the future.