What do you mean by climate change?

Explanation:

climate change is the change in the pattern of normal climate of any places due to effect of global warming.

hope it helps

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

i believe that the answer to the question provided above is that the role of campaign committees is to act as a bridge between state and local campaigns.