Climate is affected heavily due to manmade activities. One of the activity involves use of plastic bags for various reasons which effects ocean, land and air. Some countries, as a counter measure, have banned use of plastic bags to reduce harmful and poisonous effects on environment and reduce pollution. I agree that such practice should be accepted by all the countries across the globe.
Primarily, Oceans and Sea around the world are polluted due to various reasons such as releasing sewage waste in ocean water, industrial wastage removal into the seas, sabotaging of ships containing oil barrels, throwing various items made of POP into water and many other things apart from throwing plastic bags. However, according to research, 60-95% of the waste in water is due to plastic debris.
Secondly, land is polluted because of the reasons like sewage waste and plastic waste. Sewage waste are biodegradable which is less harmful over the period of time whereas plastic takes hundreds and thousands of year to break down so environmental damage is long-lasting. Additionally, when plastic is dumped in landfills, it interacts with water and forms hazardous chemicals which is harmful for soil.
Thus, use of plastic should be reduced and substitutes of plastics should be invented to avoid it completely. Many countries have already banned plastic usage and such practice should be followed by all so that climate stays unaffected due to such manmade activity. 
Climate is  
affected
  heavily
  due
 to  
manmade
 activities. One of the activity involves  
use
 of  
plastic
 bags for various reasons which effects ocean, land and air.  
Some
 countries, as a counter measure, have banned  
use
 of  
plastic
 bags to  
reduce
 harmful and poisonous effects on environment and  
reduce
 pollution. I  
agree
 that such practice should be  
accepted
 by all the countries across the globe. 
Primarily
, Oceans and Sea around the world  
are polluted
  due
 to various reasons such as releasing sewage  
waste
 in ocean  
water
, industrial wastage removal into the seas, sabotaging of ships containing oil barrels, throwing various items made of POP into  
water
 and  
many
 other things apart from throwing  
plastic
 bags.  
However
, according to research, 60-95% of the  
waste
 in  
water
 is  
due
 to  
plastic
 debris. 
Secondly
, land  
is polluted
  because
 of the reasons like sewage  
waste
 and  
plastic
  waste
. Sewage  
waste
 are biodegradable which is less harmful over the period of time whereas  
plastic
 takes hundreds and thousands of year to break down  
so
 environmental damage is long-lasting.  
Additionally
, when  
plastic
  is dumped
 in landfills, it interacts with  
water
 and forms hazardous chemicals which is harmful for soil. 
Thus
,  
use
 of  
plastic
 should be  
reduced
 and substitutes of  
plastics
 should  
be invented
 to avoid it completely.  
Many
 countries have already banned  
plastic
 usage and such practice should  
be followed
 by all  
so
 that climate stays unaffected  
due
 to such  
manmade
 activity.