Climate Change Impacts Arctic Region
There are mounting evidences that Arctic region is undergoing the maximum impact of climate change. Snow capped Arctic region is rapidly disappearing. We may witness the first ice free summer by 2040 or even earlier. Polar bear, indigenous flora and fauna, as well as cultures are already suffering (news.nationalgeographic.com). Glaciers are melting. Mountain snows are melting even faster. For instance, Montana’s GlacierNational Park today has only 27 glaciers as against 150 in 1910 (news.nationalgeographic.com).
The question to address is who is responsible for the climate change. Is the present climate change caused by geographical forces beyond human control or are human beingis responsible for it? According to the IPCC Feb.2007 report based on the work of 2500 scientists in more than 130 countries, human beings are most likely responsible for climate change as they have caused all or most of the planetary warming (news.nationalgeographic.com).
Inddustrialization, deforestation and pollution have greatly increased concentration of water vapour, CO2, methane, nitrous oxide, and all other green house gases that help trap heat near earth’s surface (news.nationalgeographic.com).
Humans are pouring CO2 in atmosphere much faster than plants and oceans can absorb it. Moreover, these gases are known to persist for decades. In other words, even if emissions were eliminated, it would not immediately stop global warming (news.nationalgeographic.com).
The consequences of global warming could be devastating for life on earth. The April 2007 follow up report of the IPCC warned that climate change could lead to large scale food and water shortage and impact wild life (news.nationalgeographic.com).