The belief that the weather is changing, due to pollution, greenhouse gases, etc.
Global Warming
To make a tree fall
Chop down
If I lived in Canada, it_________ (be)much colder this time of year.
would be
If he_____________(be) more careful, his car wouldn´t have been wrecked.
had been
It's high time we ______ (do) something about this situation
did
Air protecting us from UV Rays.
Ozone Layer
To be less common; disappear
Die out
If she ____________ (have)more free time, she would have more hobbies.
had
Had we been more prepared, we ______________( bring) a picnic for the hike.
would have brought
I'd rather you ______ (continue) taking your medication for another week.
continued
Garbage that is dangerous to humans and animals.
Toxic waste
destroy completely
wipe out
If we had known the circus was in town, we _________ (go) to see it.
would have gone
I ______________(walk) to the top of the mountain if the weather hadn't been so bad.
would have walked
Suppose we ____ (go) out for dinner. What would you want?
went
Change or growth that does not endanger the natural environment.
Sustainable development
to have no more of something
run out
If he _________ (go) to the grocery store with his parents, he could have bought what he wanted.
had gone
If she _______ (be) really my friend, she wouldn't have lied to me.
was
If only I ______ (start) learning the guitar sooner
started or had started
Accumulation of carbon dioxide and other toxic gases in the atmosphere.
Greenhouse affect
require, demand
call for
He would have come with us if he _______ (not be) so busy.
hadn´t been
It's really important. If it wasn't, I _______ (call) you on your holiday.
wouldn´t have called
She wishes she ____________ (visit) her grandparents this weekend.
could visit