1.What are the Greenhouse Gases? • Carbon dioxide (CO2) is responsible for more than half the human contribution to the greenhouse effect, and concentrations have climbed steadily from around 280 parts per million at the dawn of the industrial revolution—meaning 0.028 percent of the air’s volume is taken up by the gas—to around 355 ppm today. As people burn oil, coal and natural gas, they release carbon that ancient plants in past geological ages absorbed and …showed first 75 words of 2267 total…

…showed last 75 words of 2267 total…poor. Information and education: People often do not know how to improve efficiency or reduce emissions. Government can provide them with the information they need to make better choices. Research and development: Government and industry can support research to demonstrate and improve existing technology, and to develop new technologies that use less energy or emit no carbon dioxide (e.g., refrigerators that use less electricity, cheap practical solar water heaters, and inexpensive solar/hydrogen technology).