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.
Typical costs: 1  Window-mounted room air conditioners range from $100-$300 to cool a room of 150-400 square feet (10x15- to 20x20-feet), and $300-$800 or more for larger spaces. Generally, extra-quiet, energy-efficient models with remote controls are at the upper end of the price ranges.