Corrections: Environment

My teacher speaks about environment​ every Sunday.
He saidsays(Either use a date like last week/last Sunday, or use present tense to show it is a common theme in his discussions) now we can't control pollution anymore.
We devise(what do you mean?) earth with pollution, with outwithout any jungles, healthy water and air for our children.
He worried about trash of atomicnuclear waste. 
We don't know what we can do to stop destruction of earth. (Great job using wh clause in the middle of the sentence!)
Unfortunately when we go to junglethe woods, we see many of trashlots of garbage. that seem to be the city dump.
First we should speak with citizenship and want them to call up other people if they don't attention environment. (what do you want to say here?)

To Study:
Present Tense
https://learnenglish.britishcouncil.org/en/english-grammar/verbs/present-tense
https://learnenglish.britishcouncil.org/en/english-grammar/verbs/present-tense/present-simple (specifically for this part: But the third person (she/he/it) adds an -s: She works in London.)

Paragraphs in Writing
Why every sentence is in one line? Like in Persian there should be in one paragraph if they are related.