In the past one century, the environment has suffered a lot of changes. One of the most pressing issues is global warming. This essay discusses what are the causes of the issue and its remedies.
To commence with, the most important cause of global warming is the greenhouse effect. These days our lives have become dependent on the non-renewable resources, which when used to generate greenhouse gases. For example, petrol is the most consumed fuel in the vehicles, which generates CO2 as by product. These green house gases degenerate the ozone layer in the atmosphere, which protects the earth from UV rays of the sun. Hence, the temperatures are rising across the globe. Deforestation is another major reason of it. Trees consume CO2 and generate oxygen. As the number of trees is decreasing, the consumption of CO2 decreases and thus, there is a rise in the temperatures.
However, there are some measures which can help in protecting the earth from the global warming. Firstly, forestation should be done. This is the easiest way to decrease the CO2 in the atmosphere. Both individuals and the administration can take steps forward to it. For instance, as an individual, one can plant trees in one's house and the administration can zone out the land for the plantation of the trees. Secondly, the administration must encourage people to use the renewable and non-polluting resources of energy. As an example, electricity can be generated through windmills or solar energy. This can then be used to drive the vehicles.
To conclude, a rise in temperatures across the globe is an area of major concern in these times with causes such as deforestation and increase of CO2 levels in the atmosphere. On the contrary, by reforestation and by using clean energy, this can be controlled. 
In the past one century, the environment has suffered  
a lot of
  changes
. One of the most pressing issues is global warming. This essay discusses what are the causes of the issue and its remedies.
To commence with, the most  
important
 cause of global warming is the greenhouse effect. These days our  
lives
 have become dependent on the non-renewable resources, which when  
used
 to generate greenhouse gases.  
For example
, petrol is the most consumed fuel in the vehicles, which generates CO2 as by product. These green  
house
 gases degenerate the ozone layer in the atmosphere, which protects the earth from UV rays of the sun.  
Hence
, the temperatures are rising across the globe. Deforestation is another major reason of it.  
Trees
 consume CO2 and generate oxygen. As the number of  
trees
 is decreasing, the consumption of CO2 decreases and  
thus
, there is a rise in the temperatures. 
However
, there are  
some
 measures which can  
help
 in protecting the earth from the global warming.  
Firstly
, forestation should  
be done
. This is the easiest way to decrease the CO2 in the atmosphere. Both individuals and the administration can take steps forward to it.  
For instance
, as an individual, one can plant  
trees
 in one's  
house
 and the administration can zone out the land for the plantation of the  
trees
.  
Secondly
, the administration  
must
 encourage  
people
 to  
use
 the renewable and non-polluting resources of energy. As an example, electricity can  
be generated
 through windmills or solar energy. This can then be  
used
 to drive the vehicles. 
To conclude
, a rise in temperatures across the globe is an area of major concern in these times with causes such as deforestation and increase of CO2 levels in the atmosphere.  
On the contrary
, by reforestation and by using clean energy, this can  
be controlled
.