Answer:
Fearing that the issue might disrupt the Republic, he argued for the doctrine of popular sovereignty-the right of the people of a state or territory to decide the slavery question for themselves-as a Union-saving formula. He led the fight in Congress for the Compromise of 1850.
Hey Cole, How Are You Doing? I Have A Link For You On The Civil War Time Line. I Think It Will Help You The Most In Your Question:
Link: https://www.nps.gov/gett/learn/historyculture/civil-war-timeline.htm
It made it easier to transport goods and it caused the creation of nitroglycerin which made mining easier nitroglycerin is TNT
Environmental issues are not taken as seriously, people believe the environment is sustainable and often they are afraid to think to deep into what might actually happen to the environment if not treated correctly. However economic issues are easy because it is directly going to impact the people. Environmental issues are future issues, economic issues are present issues.