A mode for global action.Byline: The Register-Guard
The script is familiar: Scientists warn that human activity is causing an environmental problem with severe worldwide consequences. It's predicted that fixing the problem will be disruptive and expensive.
Developing nations blame the industrialized in·dus·tri·al·ize
v. in·dus·tri·al·ized, in·dus·tri·al·iz·ing, in·dus·tri·al·iz·es
1. To develop industry in (a country or society, for example).
2. world for having created the problem and balk balk
the action of a horse when it refuses to obey a command to which it usually responds. See also jibbing. at assuming responsibility for corrective action. Developed nations worry that the problem can't be addressed without a broad global commitment. Overlying overlying
suffocation of piglets by the sow. The piglets may be weak from illness or malnutrition, the sow may be clumsy or ill, the pen may be inadequate in size or poorly designed so that piglets cannot escape. everything is a cloud of doubt about the cause of the problem, its severity and the effectiveness of the prescribed remedies.
Global warming? Well, yes. But the same type of debate occurred in the 1980s when atmospheric scientists found that a widely used class of chemicals was damaging the Earth's protective ozone layer.
Diplomats, environmentalists and scientists are gathered in Montreal this week to celebrate the success of a treaty signed in that city 20 years ago that set ambitious ozone-protection goals. The Montreal Protocol is encouraging evidence that the nations of the world can pull together in support of a common goal.
The Montreal Protocol eventually was signed by 191 nations. Production of ozone-damaging chlorofluorocarbons chlorofluorocarbons (klōr'əflr`əkär'bənz, klôr'–) (CFCs), organic compounds that contain carbon, chlorine, and fluorine atoms. , or CFCs, has been reduced in developed nations by 95 percent. Less developed nations have cut their CFC CFC
See: Controlled foreign corporation use by more than half.
Despite predictions to the contrary, effective and economical ozone-safe substitutes for CFCs, which were widely used in refrigeration refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective. and as aerosol propellants, have been introduced.
The ozone layer in the Earth's stratosphere filters the sun's ultraviolet-B radiation, which can cause skin cancer and cataracts and harm plants and animals Plants and Animals are a Canadian indie-rock band from Montreal, comprised of guitarist-vocalists Warren Spicer and Nic Basque, and drummer-vocalist Matthew Woodley. They are signed to Secret City Records. . CFCs drift into the Earth's high atmosphere and break down ozone molecules.
In 1985, a seasonal "hole" in the ozone layer was detected over Antarctica, and the ozone layer above North America was found to have been depleted by 7 percent.
CFCs are long-lasting chemicals that will continue to attack the ozone layer for a century or longer. Last year's Antarctic ozone hole was the biggest ever. But the levels of ozone-destroying chemicals in the atmosphere are declining, and the depletion of the ozone layer over North America has been reversed. The Environmental Protection Agency Environmental Protection Agency (EPA), independent agency of the U.S. government, with headquarters in Washington, D.C. It was established in 1970 to reduce and control air and water pollution, noise pollution, and radiation and to ensure the safe handling and estimates that in the United States alone, the Montreal Protocols will prevent 6.3 million deaths from skin cancer and save $4.2 trillion over a 175-year period.
Global warming is a huge, complicated problem. Its primary human cause is the combustion of the fossil fuels that power modern industrial civilization.
But ozone depletion looked like a tough problem, too. In retrospect, it's surprising how easy it was to make solid, worldwide progress in a relatively brief period.