After you see above image of the instrumental record of global average temperatures as compiled by the Climatic Research Unit of the University of East Anglia and the Hadley Centre of the UK Meteorological Office, please calm down and do no shock.
Our world temperature is increase in every year. Since 1920, the temperature increasing more than 100%. I don’t wonder why previous winter I don’t have a chance to wear warm clothes at all.
Global warning is really need so everyone can help this.
Have a look this quote from wiki what cause if the temperature rising more and more
An increase in global temperatures can in turn cause other changes, including a rising sea level and changes in the amount and pattern of precipitation. These changes may increase the frequency and intensity of extreme weather events, such as floods, droughts, heat waves, hurricanes, and tornados.