Old English broc garment for the legs and trunk; see breeches). The sense might reflect the breeches sense, on the notion of two limbs or of appliances used in pairs. The typographical bracket is first recorded 1750, so called for its resemblance to double supports in carpentry (a sense attested from 1610s). Senses affected by Latin brachium arm..
Carbon dioxide, a greenhouse gas, is the main pollutant that is warming Earth. Though living things emit carbon dioxide when they breathe, carbon dioxide is widely considered to be a pollutant when associated with cars, planes, power plants, and other human activities that involve the burning of fossil fuels such as gasoline and natural gas.
Globally, the average carbon dioxide produced per person was 1.4 tons. The US still has the highest per capita emissions at 16.4 tons of carbon dioxide per person.As a major exporter, 16 percent of Chinaâs emissions are created producing goods and services that are exported.hina has passed the EU for the first time in terms of per capita emissions in 2013, according to a new scientific report. Globally, the limit for atmospheric carbon will be reached in 30 years if pollution continues at the current pace, the report warns. Tags Global warming, EU, China, USA, Energy.