1)The main reason of ecological problems is thoughtless human activity.
2)The main ecological problems are depletion of the ozone layer, acid rains, global warming.
3)The ecological problems should be a universal concern because if all people dont realize that we are reasponsible for whats happenning around us , we will never feel the secure about the future of the world we live in.
4)There are different are taken to fighr ecological problems and some of them are goverments make plants fit filters on chimneys , also in some countries goverment reduce the use of personal cars;if to say about citizens , they try to consume less and conserve more , take part in the recycling of gabages, buy in bulk.