【正文】 cent. Every gallon of gas you save not only helps your budget, it also keeps 20 pounds of carbon dioxide out of the atmosphere. 5) Buy EnergyEfficient Products When it’s time to buy a new car, choose one that offers good gas mileage. Home appliances now e in a range of energyefficient models, and pact florescent bulbs are designed to provide more naturallooking light while using far less energy than standard light bulbs. Avoid products that e with excess packaging, especially molded plastic and other packaging that can39。t be recycled. If you reduce your household garbage by 10 percent, you can save 1,200 pounds of carbon dioxide annually. 6) Use Less Hot Water Set your water heater at 120 degrees to save energy, and wrap it in an insulating blanket if it is more than 5 years old. Buy lowflow showerheads to save hot water and about 350 pounds of carbon dioxide yearly. Wash your clothes in warm or cold water to reduce your use of hot water and the energy required to produce it. That change alone can save at least 500 pounds of carbon dioxide annually in most households. Use the energysaving settings on your dishwasher and let the dishes airdry. 7) Use the Off Switch Save electricity and reduce global warming by turning off lights when you leave a room, and using only as much light as you need. And remember to turn off your television, video player, stereo and puter when you39。re not using them. It’s also a good idea to turn off the water when you’re not using it. While brushing your teeth, shampooing the dog or washing your car, turn off the water until you actually need it for rinsing. You’ll reduce your water bill and help to conserve a vital resource. 8) Plant a Tree If you have the means to plant a tree, start digging. Trees absorb carbon dioxide and give off oxygen. They are an integral part of the natural atmospheric exchange cycle here on Earth, but there are too few of them to fully counter the increases in carbon dioxide caused by automobile traffic, manufacturing and other human activities. A single tree will absorb approximately one ton of carbon dioxide during its lifetime. 9) Get a Report Card from Your Utility Company Many utility panies provide home energy audits to help consumers identify areas in their homes that may not be energy efficient. In addition, many utility panies offer rebate programs to help pay for the cost of energyefficient upgrades. 10) Encourage Others to Conserve Share information about recycling and energy conservation with your friends, neighbors and coworkers, and take opportunities to encourage public officials to establish programs and policies that are good for the environment. These 10 steps will take you a long way toward reducing your energy use and your monthly budget. And less energy use means less dependence on the fossil fuels that create greenhouse gases and contribute to global warming. Noise pollution is any kind of undesirable, disturbing sound. Noise is among the most pervasive pollutants today. The immediate threats that noise pollution poses to human health and wellbeing are often underestimated. Traffic noise is one of the major sources of noise pollution in Beijing horns are there for cases of emergency only! Noise Green Tips ? Turn down the volume of your stereo, radio, TV (you are already confronted with enough loud noise daily) or wear headphones (not too loud either). ? Don’t add to the overa ll noises in the streets: horns are there for cases of emergency only! ? If you own a car and have a car alarm make sure it only goes off when it should. ? Build up a strong munity that actively opposes noise pollution in its neighbourhood (monitoring, noise controls, awareness posters, etc.). Complain about reoccurring or permanent sources of noise to your Environmental Protection Bureau. ? Buy quieter appliances in and around the house.