There are spatial variations on the socio-economic and environmental effects of global warming depending on the level of technological advancement of each region to tackle the challenges of global warming. Some regions become drier and hotter where as some become wetter and cooler. Global warming can result in extreme temperatures of heat and cold. More heat waves , heavy rains, increased cyclones and drought are likely to be experienced due to global warming. These direct impacts would indirectly affect a range aspects on the environment. The increased temperatures would increase the spread of diseases in crops and animals. Vegetation can dry up due to high temperatures and low precipitation received in some regions. At the same time increased temperature can tolerate some plants and animals to survive in those regions. In drought affected areas there would be a decline in crop yields. Coastal flooding and erosion can increase due to increased rainfall and cyclones in coastal areas and ice melting regions. Coastal flooding can destroy infrastructure and aquatic ecosystem. The sea level also rises due to glacial melting and thermal expansion of water. This may cause shore line shifting. There is also dwindling of arctic ice as well as decline in permafrost in the Northern hemisphere in terms of area coverage and thickness attributed to increased temperatures that causes melting of ice sheets.