sunnyS

TOPIC 5: Describe how climate can be influenced by human activities (eg. Greenhouse gasses, depletion of ozone layer)

There are many things that contribute to the environment negatively. Human activities are one of them. Humans affect the environment in things that we do every day, from transportation, industrial work, and driving cars. These things may affect our everyday lives positively but they are affecting the environment in a bad way.

 Global warming is a result of humans not properly using their resources. Global warming is basically a rise in heat in the earths atmosphere that melts snow and glaciers. Human activities make four main greenhouse gases: carbon dioxide, methane, nitrous oxide and halocarbons( A group of gases that contain fluorine, chlorine and bromine). Carbon dioxide can be produced from the burning of fossil fuels when they are released the gases make the atmosphere thicker and that keeps the earths rays inside, warming the  earth. this can change the climate dramatically in many places.media type="youtube" key="CxUK2TizQ4g" height="273" width="336"

The biggest contribution to global warming is driving. The number of cars on the road is rising everyday and the fuels that are used to power them release carbon dioxide. Even when we have to travel a short distance we mostly use cars. One way we can reduce this is by walking or biking. Another thing that is really harming our environment is smoking. Cigarettes release chemicals that help the green house gas effect and leads to global warming. the government has tried putting in laws on where you are allowed to smoke but because it is not really enforced not a lot of people listen.

all of these things contribute the ozone depletion. the effects this could have in future can hurt the environment in many ways. UV-B's are one consequence that come with depletion. they can cause skin cancer and this cancer will kill up to 60 million Americans born by 2075. we can avoid this by reducing our greenhose gases by using our resources properly and efficiently.media type="youtube" key="dP-tg4atr5M" height="273" width="336"

To see your carbon foot print visit:[|carbon calculator]

Bibliography: [] [] [] [] [] []