Climate Scientists are very concerned - You should be concerned too.

Average global temperature has increased by about 1.4˚F over the last 100 years. Sea level is rising, and some types of extreme events — such as heat waves and heavy precipitation events -– are happening more frequently. Recent scientific findings indicate that climate change is likely responsible for the increase in the intensity of many of these events in recent years.

http://www.nationofchange.org/climate-scientists-we-re-alarmed-here-s-why-you-should-be-too-1395584864