Archive: 2009

If you have been watching TV, listening to the radio, or riding the T lately, you're likely to have seen or heard a lot of public service announcements raising awareness of heart disease, particularly in women. Heart disease is one of the leading causes…

Three types of technologies have been proposed as solutions to the challenge of global climate change. The first is clean energy technology (for example, wind, solar, or biofuels), which can produce electricity or power cars without burning fossil fuels.…