Nowadays, A growing of researchers is warning about the increasing of sea level and how this state affecting the existence of human beings. Numerous factors are leading to the rising level of the sea, but the melting of ice and global warming are regarded as the main reasons.
The first cause of emerging sea levels is global warming. Not only do trees aid to slow down the speed of global warming but they hold themselves amount of carbon dioxide as well, which means forests play an essential role in storing greenhouse gases. In modern societies, several trees have been replaced for skyscrapers due to the high speed of urbanization. As a result of this state, brine will have a warmer temperature. It is a consequence that the higher temperature the coastal water is heated, the more space the oceans will take up.
Another reason for rising sea levels is the melting of ice at the two poles of earth. In particular, land ice and ice sheets melt quicker in reaction to rising temperatures and bringing significantly more water into the oceans, namely in Greenland and West Antarctica. Fresh surface water is dangerous also because it acts as a lubricant for ice streams, allowing them to slide away faster and bringing freshly filtered water to the ice's base. As a result, it melts, weakens and falls into the river.
In conclusion, ice melting and global warming are some sources leading to these social challenges. In my observation, the government should enact more education projects in order to raise citizens' awareness of protecting our ocean. 
Nowadays, A growing of researchers is warning about the increasing of  
sea
  level
 and how this state affecting the existence of human beings. Numerous factors are leading to the rising  
level
 of the  
sea
,  
but
 the melting of ice and  
global
  warming
  are regarded
 as the main reasons.
The  
first
 cause of emerging  
sea
  levels
 is  
global
  warming
. Not  
only
 do  
trees
 aid to slow down the speed of  
global
  warming
  but
 they hold themselves amount of carbon dioxide  
as well
, which means forests play an essential role in storing greenhouse gases. In modern societies, several trees have  
been replaced
 for skyscrapers due to the high speed of urbanization.  
As a result
 of this state, brine will have a warmer temperature. It is a consequence that the higher temperature the coastal  
water
  is heated
, the more space the oceans will take up.
Another reason for rising  
sea
  levels
 is the melting of ice at the two poles of earth.  
In particular
, land ice and ice sheets melt quicker in reaction to rising temperatures and bringing  
significantly
 more  
water
 into the oceans,  
namely
 in Greenland and West Antarctica. Fresh surface  
water
 is  
dangerous
  also
  because
 it acts as a lubricant for ice streams, allowing them to slide away faster and bringing  
freshly
 filtered  
water
 to the ice's base.  
As a result
, it melts, weakens and falls into the river. 
In conclusion
, ice melting and  
global
  warming
 are  
some
 sources leading to these social challenges. In my observation, the  
government
 should enact more education projects in order to raise citizens' awareness of protecting our ocean.