Raja+Kang

=__//**How humans activities affect climate change topic # 5**//__=

===Mankind affects the climate change in many different ways one of the largest known contributions is the burning of fossil fuels which releases CO2 into the atmosphere.CO2is one of the green house gases that affect climate change. Green house gases affect the radiation budget of planet earth. Radiation and heat comes inside the earth atmosphere but when the rays are reflected back they are not able to go through the earth atmosphere and escape into outer space. The green house gases stay in the atmosphere and act like a barrier toward the radiation and heat which means that the radiation and heat are trapped inside earth atmosphere which causes earths climate to rise in temperature.===

===The burning of fossil fuels produces around 21.3 billion tonnes of (CO2) per year, but it is estimated that natural processes can only absorb about half of that amount, so there is a net increase of 10.65 billion tonnes of atmospheric carbon dioxide per year.===

===We can reduce. Drive less and use public transit or carpool more often. Reduce the amount of petrol, diesel used by your vehicle if you own one and buy an hybrid vehicle. Use less plastic bags and use more cloth bags and walk to your destination instead of getting your mother to drive you around.===