Since polystyrene disintegrates slowly, one of the main challenges that it poses on the environment is that exposure to the sun causes it to photodegrade, meaning it breaks apart into smaller and smaller pieces. The broken down material ends up looking like food to small animals.
United States Congress elections, 2016. A total of 469 seats in the U.S. Congress (34 Senate seats and all 435 House seats) were up for election on November 8, 2016. The big story of the 2016 congressional election cycle was whether or not the Democratic Party would be able to regain control of the Senate.
See also: United States House of Representatives elections, 2014 and U.S. House battleground districts, 2014 All 435 of the seats in the U.S. House were up for election in 2014. To regain control of the House, Democrats needed a pick-up of 15 seats.