জল এবং বায়ু

              

Scientists have been studying the relationship between global climate and carbon in the atmosphere for more than a century, with a growing understanding of the massive experiment we’re conducting. Bangladesh is one of the countries most likely to suffer adverse impacts from anthropogenic climate change. Threats include sea level rise, droughts, floods, and cyclones. Climate change is a change in the statistical distribution of weather patterns which lasts for an extended period of time.  Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have been identified as primary causes of ongoing climate change, often referred to as global warming. 

                                      Source: https://youtu.be/G4H1N_yXBiA

climate change is happening because of-

• Burning coal, oil and gas produces carbon dioxide and nitrous oxide.
• Cutting down forests (deforestation). Trees help to regulate the climate by absorbing CO2 from the atmosphere. So when they are cut down, that beneficial effect is lost and the carbon stored in the trees is released into the atmosphere, adding to the greenhouse effect.
• Increasing livestock farming. Cows and sheep produce large amounts of methane when they digest their food.
• Fertilisers containing nitrogen produce nitrous oxide emissions.
• Fluorinated gases produce a very strong warming effect, up to 23 000 times greater than CO2.
• GreenHouse gases are mostly responsible for larger ammount of global climate change.

                  

                               source: www.sparttiart.com

Green house gases causes massive destruction to the ozone layer. as an effect, more and more amount of ultraviolate rays are penetrating through the atmosphere and striking on the earth. And as a result, massive meltdown of ice glaciers or polar caps are in effect, as well as rise of sea level and global warming. here are two videos-

                                        

source: https://youtu.be/aU6pxSNDPhs

                                         

                         

source: https://www.youtube.com/watch?v=QwLyscT3NgI