Abstract :
The global temperature trends are being changed due to anthropogenic activities. The natural ecosystems and human societies both are affected by climate change. Increasing concentration of CO2 and other atmospheric gases are causing climate changes. Green house gases include methane and oxides of nitrogen and Sulphur. Accurate data can identify variations in temperature and precipitation. Arctic regions exhibit considerable warming trends. Arctic regions are two times warmer than the other parts of world. The largest increase in precipitation occurs in Northern Europe at the rate of 12.9mm per decade. The concentration of carbon dioxide has been raised up to 4.14 ppm in atmosphere by December 2020. This increased concentration has raised the global temperature. Global temperature has increased up to 1.2°C since pre industrial era.
Keyword :
Global temperature, Green house gases, pre industrial era, warming trends, carbon dioxide.