Global Warming is the term used for the increase in planet Earth’s atmospheric temperature. These days almost every individual is familiar with the term Global Warming but not everyone believe that the earth’s temperature is actually rising. As the inhabitants of this planet we all have to do our part for its sustainability.
Facts About the realty of Global Warming:
The national science academies of the major industrialized nations have stated that with the minimum emission of greenhouse gases the earth’s temperature will probably rise from 0.3 to 1.7 °C (0.5 to 3.1 °F) and with the highest emission of these gases the earth’s temperature is likely to rise 2.6 to 4.8 °C (4.7 to 8.6 °F).
According to a report Instrumental temperature record the average global temperature (Land/Ocean) has been increased by 0.85 [0.65 to 1.06]°C in 132 years [1880 to 2012]. From 1906 to 2005 the average rise in earth’s surface temperature recorded was 0.74±0.18 °C , which is almost doubled for the last half of that period (0.13±0.03 °C per decade, versus 0.07±0.02 °C per decade).
According to satellite temperature measurements since 1979 the lower troposphere’s average temperature has been increased by 0.13 and 0.22 °C (0.23 and 0.40 °F) per decade. It has been observed that before 1850 the earth’s temperature was been stable for one to 2 thousand years with slight fluctuations regionally.
Studies and research have confirmed that comparing to the 20th century average almost each one of the past 38 years has been warmer. Since 1998 the warmest years have been recorded The 12 warmest years on record have all occurred since 1998 and 2012 is the hottest year recorded in United States.Studies confirm the rise in temperature by 1°F since 1800s which majorly occurred during the past three decades.
Globally, the average surface temperature has increased more than one degree Fahrenheit since the late 1800s. Most of that increase has occurred over just the past three decades.
What are Greenhouse Gases and how they affect atmospheric temperature :
Greenhouse gases are a result of the burning fossil fuel, land clearing, human activities and industrialization. Carbon Dioxide is the main player of greenhouse gases and is mainly responsible for the warming of earth’s atmosphere. Excess CO2 (carbon dioxide) along with other air pollutants absorbs sunlight and solar radiation and results in the warming of earth’s atmosphere. In the absence of excess CO2 and other pollutants in the air, sunlight and solar radiation bounce back to the space.