Evidence
2) In the text....
3) For example...
Anything along these lines would be acceptable
"The overuse of automobiles in Chicago and Shanghai has been a great setback to the current efforts being used toward reducing greenhouse gases". BOTH SHANGHAI AND CHICAGO ARE BIG CITIES THAT HAVE A LARGE POPULATION AND NEED THE REDUCTION OF MORE CARS.
Argumentative: whether or not, argue why, take a position
Quote:"Obama's plan to reduce the United States' greenhouse gas output has been helped by the decrease in Americans that are driving less each year"
-electric cars
-ride sharing
"In Rosenthal's article, she included how experts have said that the overuse of automobiles in Chicago and Shanghai has been a great setback"