Half of the Colombian population lives in regions dependent on primary activities such as agriculture, livestock, and fishing. This sector is characterized for being a mix of two kinds of productive systems: large-scale ...

It is often difficult to forecast the future budgetary environment for today's space systems. Indeed, multiple NASA missions and programs have been put into jeopardy or canceled outright, due to discrepancies between the ...

Anthropogenic emissions of greenhouse gases are very likely to have already changed the Earth's climate, and will continue to change it for centuries if no action is taken. Nuclear power, a nearly carbon-free source of ...

This thesis examines the impact of aircraft emissions on local air quality by performing two analyses: an assessment of U.S. commercial aircraft contribution to county budgets of primary pollutants in nonattainment areas, ...

Continuously increasing demand for processing power, storage capacity, and I/O capacity in personal computing, data network, and display interface suggests that optical interconnects may soon supplant copper not only for ...

Though we must eventually find viable alternatives for fossil fuels in large segments of the energy market, there are economically attractive fossil fuel alternatives today for niche markets. The easiest fossil fuels to ...

The Carbon Capture and Sequestration Technologies Program in the Laboratory for Energy and the Environment at MIT conducted a survey of public attitudes on energy use and environmental concerns. Over 1,200 people, representing ...

September 11th, 2001 marks the worst terrorist action to occur on United States soil and opens a new period in history in which indiscriminate terrorist acts are possible, if not probable. Many of these possible acts, as ...