Blowing smoke: British American Tobacco's air filtration scheme

Blowing smoke in Yellowstone: air quality impacts of oversnow motorized recreation in the park.

Snowmobile use in Yellowstone National Park has been shown to impact air quality, with implications for the safety and welfare of Park staff and other Park resource values. Localized impacts have been documented at several high-use sites in the Park, but the broader spatial variability of snowmobile emissions and air quality was not understood. Measurements of 87 volatile organic compounds (VOC...

Carbon Capture & Storage: Blue-Sky Technology or Just Blowing Smoke?

Cigarette Smoke and Air Mixture

There is no doubt that the tar produced by condensing cigarette smoke is carcinogenic for mice (see Day, 1967). However, lung epithelium differs from the skin and the condensate differs from fresj cigarette smoke in, for example, the absence of the gaseous components. It appeared worth while to us, therefore, to attempt to produce lung carcinomas in mice by allowing them to breathe a mixture of...

An Analysis of the Ideological Content of Internationally-Developed British and American ELT Textbooks

This study examines the ideological content of six internationally-used ELT textbooks, three British and three American. Applying the theory and procedures of critical discourse analysis (CDA), three aspects of the conversations in the textbooks, i.e. content, relations, and positions were examined. Results suggest that in terms of content, British textbooks tend to entertain the students while...

North American smoke fire plume heights

Smoke injection heights from fires in North America: analysis of 5 years of satellite observations M. Val Martin, J. A. Logan, D. Kahn, F. Y. Leung, D. Nelson, and D. Diner School of Engineering and Applied Science, Harvard University, Cambridge, MA, USA NASA Goddard Space Flight Center,Greenbelt, MD, USA Washington State University, Pullman, WA, USA Raytheon Intelligence and Information System...