In time, all things come to pass.
Eventually the sun will go super nova, and this entire planet will be destroyed as we know it.
Speaking in terms of a few more billion years however, the sun will continue to shine much like it has, and we will continue to use hydrocarbons to make our lives better in so many ways it would take days to just post them here.
Enjoy your computer? It's made of plastic, minerals and metals mined from the earth, processed with electricity generated by dams or the burning of hydrocarbons, or heaven help us, decaying atoms.... and the world continues on.
Like your house? It's built of wood from a forrest somewhere.
How about your shoes? Leather is nice, but comes from dead cows, or Elk if you want great gloves, or pig if you want them to last a long time... Don't like to think about that? How about sythetic clothes and materials... oh, they are made of processed hydrocarbons...
Now please don't get me wrong. I believe in perserving this earth, and being good stewards of the great things it has to offer. This does not mean we should worship the earth, or it's animals, trees and other wildlife and habitats. When I see forrest fires out of control every summer, It makes me sick that dumbasses from the Sierra club are directly responsible for the distruction of my great outdoors. Logging the forrests and replanting trees is great stewardship, and is completely renewable. Most of what people claim to be "old growth" forrests are really only a 100 years old or so, and that's relatively new in the long term scale of things. (Notice I said most, not all.) The really old forrests are in serious trouble. They have not been thinned out with logging, or fire, and have grown into huge tinderboxes of dry and dead trees just waiting for a spark. Then they explode into fires so hot, they burn trees that would normally not be killed by fire that stays down low to the ground. The type of fire that would be possible with a thinned out forrest.
Back to hydrocarbons. I proudly don't belive the gas I burn in my car is old dino, but I like to belive, and think there is great evidence to the fact that our crude oil is really microbe shit from deep in the earth that tends to collect in pools near the surface of certain geologic features, but really is available everywhere on the planet if you go deep enough. (But it is not in huge quantities everywhere on earth, but it's there.) This is proven by the Siljan ring well in basement rock, and the large production fields in basement rock around the world. (Noted in a prior thread is the one in Viet Nam, but there are others, and they all "should not produce" anything according to fossil fuel theory, yet are viable fields pumping up microbe shit, refining it and making our lives better every day.)