Approximately 88% of all new homes in the US were built with air conditioning in 2011, according to US Census survey findings. In comparison, 48% of new US homes in 1974 had air conditioning. The amount of air conditioners shipped in the US tripled in the same time period, according to statistics from the Air-Conditioning and Refrigeration Institute. The increase in air conditioners is typically credited in the decline of heat-related deaths in the US, which dropped 80% from 1960 to 2012. Critics have also partially blamed additional air conditioners for an increase in hot temperatures due to their production of greenhouse gases, around 3,400 pounds (1542.21 kg) of carbon dioxide annually.
More about air conditioning:
- 98% of all US cars were built with air conditioning in 2011, compared to 61% in 1974.
- One-sixth of all energy in the US is used for air conditioning, or more than the total consumption in India.
- The first home air conditioner was built in 1914 and was 20 feet (6.1 m) long,7 feet (2.13 m) high, and 6 feet (1.83m) wide.