A dairy cow emits over twice the amount of methane than a beef cow and is by far the highest contributor of all the animals studied. There are also more dairy cows in the UK than beef cattle (1.81 million compared to 1.66 million). All data found from the UK GHG Inventory report 1990-2012.
Angieâs List members in 2014 reported paying an average cost of $5,230 to install a new central air conditioners, with a general price range of $4,425 to $6,025, not counting discounts many service providers offer to Angieâs List members.
Central Air Conditioning. The average cost to add a central, or whole-house, air conditioning system to a home ranged from about $2,200 to $2,800 in 2012, according to Homewyse data.Central air conditioners move cool air throughout a house through a duct system.Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.entral air conditioners move cool air throughout a house through a duct system. Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.