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 Average Costs. The actual cost of central air installation depends on a number of factors, including the size of the home as well as the unitâs tonnage and SEER rating. 1  In a 2,000 square foot home with existing ductwork, central air conditioning costs $3,000 to $5,000 installed. In a 2,000 square foot home with existing ductwork, central air conditioning costs $3,000 to $5,000 installed. 2  If ductwork is additionally required, costs could reach $6,000 to $10,000 or more. 3  Mini-split central air conditioner prices average $1,500 to $3,000 installed.