The climatic parameters have been changing its historical distribution; resulting in increasing the frequency of extreme events. These extreme events have adverse effect on food security and humane health. Global-mean sea level rose by 195 mm from 1870 to 2004. Since 2004, there has been a further 43 mm of rise. Two-third of Bangladesh is less than the five meters above sea level. Consequently, Bangladesh is vulnerable to adverse effects of climate change and is facing increased extreme weather events. The lack of financial and technical resources of the country made it more vulnerable for climate extreme events and creating impact on livelihood parameters. This book contains research articles on Groundwater irrigation for food security in Bangladesh, Effect of indoor air pollution, Impact of climate change on the insects, Rice storage loss estimation and its prevention and Assessing community perception on climate vulnerability. We hope the climate change experts will be benefitfrom this book.