emissions

01. The [emissions] from cars are responsible for a lot of our air pollution.

02. The government has passed legislation to reduce the pollution caused by factory [emissions] by 15% over the next five years.

03. Many people have realized that the [emissions] from cars are harmful to the environment, and are taking steps to reduce their use of their own cars.

04. The [emission] of warm water from the power plant keeps the river from freezing.

05. There was a sticky [emission] from the place where the tree branch had been cut.

06. Mr. Suzuki noticed the [emission] of a pleasant odor from the woven mat on the floor.

07. Harry's cat [emitted] a screech when he stepped on its tail.

08. Beluga whales [emit] a clicking sound, which they use to locate food by listening to the echo of these sounds off objects in the water.

09. Some frogs can [emit] a loud screech when attacked.

10. This whistle [emits] sounds which cannot be heard by the human ear.

11. X-ray machines [emit] radiation, so exposure should be limited.

12. Ronald Reagan once suggested, "Approximately 80% of our air pollution stems from hydrocarbons released by vegetation, so let's not go overboard in setting and enforcing tough [emission] standards from man-made sources."

13. Former Vice-President Al Gore was so convinced that humans are warming the planet that he advocated an international treaty committing America to drastically reduce [emissions] from oil, gas and coal.

14. In 1994, delegates from 130 countries agreed at a U.N. conference that there must be new cuts in greenhouse gas [emissions] to stop global warming.

15. Global warming is caused by rising atmospheric greenhouse gases as a result of [emissions] from cars, factories and power plants.