Educate yourself
Climate change has a lot of effects that will hurt you and your family and friends. It is not something that affects people in developing countries such as Bangladesh although they will be seriously affected and many will have to leave their homes and even country. There will be many climate refugees.
Health Effects
Heat stroke, severe smog, tropical diseases such as malaria moving northward, will threaten the lives and health of children, the elderly, and those with allergies, and asthma.
http://www.ccah.cpha.ca/effects.htm
Food and Water
Climate change will seriously affect water resources. Lake levels will drop in Ontario’s four Great Lakes. Changing water levels and temperatures will in turn affect food supply. Food costs will rise and some products will not be available.
http://www.davidsuzuki.org/Climate_Change/Impacts/water.asp
Weather and Insurance
Storms are expected to increase in severity and frequency causing considerable damage to homes, roads, etc. Insurance for homes, and businesses will rise significantly, and insurance may become unavailable.
http://www.businessgreen.com/business-green/news/2238829/insurers-forced-disclose
Cost of Doing Nothing
Immediate action on climate change is much less expensive than attempting to deal with it as crises emerge. Nicholas Stern, former Chief Economist and Senior Vice-President of the World Bank estimates delayed action could be as much as 20 times more costly than immediate action. http://www.hm-treasury.gov.uk/sternreview_index.htmHowever, it is important to act once you are convinced that global warming is the defining crisis of our time.
There is lots of material on the internet to provide additional education.

