It's depressing to think of, but we are a small country and even if we all turned uber-green overnight, I wonder how much difference it'd make (not that I'm saying we shouldn't try!) when much bigger countries are unlikely to do much at all.
Once again this year, there's a piece in today's Times about the annual, vast forest fires in Indonesia - many started deliberately to clear the land for palm oil plantations. It's illegal of course, but corruption is rife there and I wouldn't like to wonder how many people are ever prosecuted. We have relatives in Singapore who suffer nearly every year from the appalling pollution wafting over it, so bad sometimes that schools are closed.
We visited several areas of Indonesia some years ago, when a dd was working there, and I can honestly say I've never seen so much plastic litter in my life. Much of it consisted of vast numbers of small water 'cups' - not even small bottles.
We also saw miles and miles of palm oil plantations, thousands of neat geometric rows of them - in areas which had previously been virgin rain forest.
Though having said that, I gather that much of the UK was once covered in forest, so much of which over many centuries has been cleared for farmland. So I suppose they are only doing what we once did - though of course nobody had ever thought of the consequences then.
None of this has ever stopped me and dh from trying to do our bit - a lot more public transport and cycling, not wasting food (not that we ever did), eating a lot less meat, not buying stuff we don't need, not ditching things just because we fancy a newer version.
I must confess to having often thought about a new kitchen (ours is 30 years old) but as long as it still works I doubt I can really be bothered with all the faff. And as long as it still produces a shepherd's pie now and then, dh couldn't give a toss.