Topic 4 Global Warming

alleviation

a decrease in severity; relief

catastrophe

a large-scale disaster, misfortune, or failure

commend

to praise, express approval; to present as worthy of attention; to commit to the care of

condemn

to express strong disapproval of; denounce

exonerate

(v.) to clear from a charge or accusation

V + sb from sth

permafrost

permanently frozen layer of soil beneath the surface of the ground

Prevalence

the fact that something is very common or happens often

inspect

to look at carefully in search of flaws

tactful

(adj.) skilled in handling difficult situations or people, polite

thawing

defrosting

reproach

address (someone) in such a way as to express disapproval or disappointment

V + sb for doing something

pledge

to make a serious promise

V + to do something

sparingly

in a restricted or limited manner

contagious

able to be transmitted from one person to another, often referring to diseases.