maybe if you are retired you need not worry. but think about your grandkids, and their grandkids. because global warming is here and is only to get worse. true that there have always been greenhouse gases damaging the ozone layer, to increase infrared radiation on earth.
it is'nt the global warming thats the problem, but the rate of change, we've had it for ever, but since the industrial revolution its took off at a pace.
it took millions of years for the carbon to build up in fossil fuels, and we're releasing it in a hundred as carbon dioxide, firstly coal then oil. more recently its cfc s and hcfc s from fridges, carbon monoxide from cars.
the oceans and rainforests can t cope anymore to clean our atmosphere. look what s happening to the ice caps, draughts, floods.
keep your head buried in the sand ! unless people change their lifestyles, things will only get worse.