temperature
how hot or cold sth is
global warming
when the planet becomes hotter
go up
to rise
polar ice cap
the large blocks of ice at the North and South Poles
melt
to become liquid because of heating
level
the amount of sth
rise
to go up
low-lying area
an area of land that is just under sea level
flood
to cover a place with water
disappear
to vanish
weather pattern
type of weather
drought
a long period without rain
crops fail
when the plants we grow to eat
don’t grow properly
lose
to no longer have sth
search
to look for
drown
to die in the water
turn off lights
to put the lights out
save energy
to reduce the amount of power you use
cut down on
to reduce sth
reduce
to make sth smaller/less
air pollution
dirty air
join
to become a part of sth
environmental group
a group of people who want to help the environment
