Global warming

more advanced technology, our greed to get more from mother nature and to live a cosy life is responsible for this global warming, earlier our relationship with nature was friendly but this give and take relationship finally turned into over-exploitation of natural resources, for eg. we are burning the fossil fuels (responsible for release of carbon dioxide), we are cutting down our forests that are the sink for carbon (since carbon is fixed in plants in the form of carbohydrates), also leading to disruption of balance between oxygen and carbon dioxide.