CLIMATE CHANGE

" No challenge poses a greater threat to future generation then climate changes"  -  BARACA OBAMA.

Climate change is an very serious and a huge problem for all of us .It affects everything from human health and food security to immigration patterns and water bodies which  includes both the global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns. Though there have been previous climate variability and change, since the mid-20th century the rate of human impact on Earth's climate system and the global scale of that impact have been unprecedented.

That human activity has caused climate change is not disputed by any scientific body of national or international standing. The largest driver has been the emission of greenhouse gases, of which more than 90% are carbon dioxide (CO2) and methane. Fossil fuel burning for energy consumption is the main source of these emissions, with additional contributions from Agriculture, Deforestation, and Industrial processes.

The Main causes of climate changing are as follows :

^{Fossil Fuel produce large quantities of carbon dioxide when burned. Carbon emission traps
heat in the atmosphere and lead to climate change.} 

Greenhouse gases include carbon dioxide (CO2), methane and water vapor. Water vapor is the most abundant greenhouse gas in the atmosphere, but it stays in the atmosphere for a much shorter period of time, just a few days. Methane stays in the atmosphere for about 9 years until it is removed by oxidation into CO2 and water. Carbon dioxide stays in the atmosphere much longer, from years to centuries, contributing to longer periods of warming. These gases trap solar radiation in the Earth’s atmosphere, making the climate warmer., the greenhouse gases (carbon dioxide, water and methane), caused by the interaction of the impactor and its ‘target rocks’, remain in the atmosphere and can cause global temperatures to increase; the effects can last decades. 

Ocean currents carry heat around the Earth. As the oceans absorb more heat from the atmosphere, sea surface temperature increases and the ocean circulation patterns that transport warm and cold water around the globe change. The direction of these currents can shift so that different areas become warmer or cooler. As oceans store a large amount of heat, even small changes in ocean currents can have a large effect on global climate. In particular, increases in sea surface temperature can increase the amount of atmospheric water vapor over the oceans, increasing the quantity of greenhouse gas. If the oceans are warmer they can’t absorb as much carbon dioxide from the atmosphere.

https://www.youtube.com/watch?v=2mbueTiCbVw&t=1249s

We all know that climate and environment are very important for all of us, but just because of us the problems like deforestation, global warming are increasing day by day. We all don't even care about what is going to happen for our future, the way we are living. all we need is change, If few people raises their voices to change, imagine what we could all do together if we wanted to.  

But the good news is that some of the peoples are now understanding the importance of climate and environment.

In this documentary we saw that thousand and thousand peoples are raising there voice to save the environment and once we start to act , hope is everywhere so instead of looking for hope we look for action.    

"Climate change is a terrible problem , and it absolutely needs to be solved .It deserve to be a huge priority" : BILL GATES

.