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MIT study finds air quality co-benefits of US carbon policies can significantly offset costs, depending upon the policy

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The human health benefits associated with improvements in air quality related to the reduction in greenhouse gas emissions improvements can offset 26–1,050% of the cost of US carbon policies, depending upon the type of policy, according to a new study by a team from MIT. Carbon-reduction policies significantly improve air quality.

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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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Annual average concentrations of fine particulates from US sources of combustion emissions from (a) electric power generation; (b) industry; (c) commercial and residential sources; (d) road transportation; (e) marine transportation; (f) rail transportation; (g) sum of all combustion sources; (h) all sources. Source: MIT.

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MIT researchers improve upon methods to model urban air pollution

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Researchers at MIT have developed a new detailed air-quality model to simulate the effects of physical, chemical, and meteorological processing of highly reactive trace species in urban areas. Thus excluding the urban processing model could lead to an overestimation of some aerosols and an underestimation of others.

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The New Supersonic Boom

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The Soviet Union's Tupolev TU-144, which could fly just as fast and had been used to transport mail and freight the previous year, began carrying passengers in 1977. government established a Supersonic Transport Advisory Committee, which began discussions with international partners about building a supersonic airliner.