Nowadays, our environment is in danger because of fumes, smoke, carbon dioxide, etc.  More and more people are getting sick every day.  Our environment is our life.  If the environment gets too dirty, we will not be able to survive.  We can’t even control the garbage that we throw away every day.  A single person can’t be blamed for or fix everything.  Therefore, we must work together to solve the problems.  People can help by switching off lamps, computers or anything that they are not using and taking garbage to designated areas.  We must protect our environment to give our children a better life.
*etc. = abbreviation for et cetera  
*There is no space between the last letter of a word and any necessary punctuation mark.  Only one punctuation mark is used at the end of a sentence.
*you know, so why?– conversational and unnecessary
*currently = nowadays
*This is what I kind very bad<– I am not sure what this means. Perhaps- I think this is very bad.
*throw- Use the simple present tense when you are writing about something that is routine or habitual (like something someone does every day).
*
Switching off lamp , computer or anything that we don\’t use .<– This is not a complete sentence. 
Taking the gabage to the designed areas .<– This is not a complete sentence.
Protecting the environment to give our children a better life .<– This is not a complete sentence. 
*can’t, don’t – Only an apostrophe is used in contractions.