Stafford Conservative MP Jeremy Lefroy, whochairedthemeeting at the Elim Christian Centre in Stafford, said he planned to meet the Prime Minister to discuss people's concerns.
Councillor Sue John, whochairedthemeeting of Brighton and Hove City Council, said it was believed the arena would be good for the local economy, bringing up to two million more visitors into the city each year.
Meteorologist Lord (Julian) Hunt, whochairedthemeeting of the All Party Parliamentary Group on Climate Change, clarified that an abrupt methane release from the current warming was not inevitable, describing that as "an issue for scientific debate".