Global Warming Scenario & Concerns
Global warming is the increase in average temperatures of the Earth's surface areas that include the air and oceans. Since the mid-20th century onwards global surface temperature has increased perceptibly.
It is believed that the increasing concentrations of greenhouse gases resulting from human activities like burning fossil fuels and deforestation are the main cause of global warming. The main tools for projecting climate changes are via mathematical models based on physical principles including fluid dynamics, thermodynamics and radiative transfer.
Increasing global temperatures are causing sea levels to rise as also changing the amount and pattern of precipitation. It is projected that this would lead to expansion of subtropical deserts. Warming is seeing to affect the Arctic areas the most that’s resulting in continually retreating glaciers, permafrost and sea ice.
Other effects include changes in frequency and intensity of extreme weather events, species extinctions and changes in agricultural yields. Global warming varies from region to region around the globe and even regional variations remain uncertain.
There are huge debates regarding responses to global warming. Options include reducing emissions and adaptation to reduce damage caused by warming. Most countries are signatories to the Kyoto Protocol that aims at reducing greenhouse gas emissions.
It is believed that the increasing concentrations of greenhouse gases resulting from human activities like burning fossil fuels and deforestation are the main cause of global warming. The main tools for projecting climate changes are via mathematical models based on physical principles including fluid dynamics, thermodynamics and radiative transfer.
Increasing global temperatures are causing sea levels to rise as also changing the amount and pattern of precipitation. It is projected that this would lead to expansion of subtropical deserts. Warming is seeing to affect the Arctic areas the most that’s resulting in continually retreating glaciers, permafrost and sea ice.
Other effects include changes in frequency and intensity of extreme weather events, species extinctions and changes in agricultural yields. Global warming varies from region to region around the globe and even regional variations remain uncertain.
There are huge debates regarding responses to global warming. Options include reducing emissions and adaptation to reduce damage caused by warming. Most countries are signatories to the Kyoto Protocol that aims at reducing greenhouse gas emissions.