A study carried out by the University of Chile on April 1994, determined that $435 millions of US dollars get lost annually due to problems of health associated with Chile’s high levels of contamination.

Globally, the Earth’s average temperature has increased in near 1°F since half of the XIX century when the recording began.

The global temperature is hotter now than in any time from 1400 D.C.

The last scientific evaluations suggest that the earth’s average temperature a hundred years from now  will be 4°F hotter. Bulletin Anaplan. February 2000. Vol. 4. Copy 1.

The predicted increase in global temperatures will cause desertification, diseases, pestilence, unprecedented cyclonic activity, rising sea levels, etc, which will in turn cause misery and ultimately death to large numbers of people.

During the last 200 years, the emissions of automobiles, energy plants and other human activities have caused the increase of 30% in the natural concentration of carbon dioxide, and it has duplicated the methane concentration in the atmosphere.

In United States in the year of 1998, a total of 5750 millions of tons of residuals was generated, of which 230 million tons were dangerous residuals. EPA 1998 

It will be several decades before developing countries will have contributed as much as developed countries to the atmospheric buildup of CO₂

In 1995 developed nations were still responsible for 61% of industrial CO₂ emissions.

Taking 1850 as a base year, records of atmospheric concentrations show that the stock of CO₂ in the atmosphere rose from 609 to 769 gigatons of carbon in 1995, an increase of 160 gigatons.

In the central scenario offered by the Intergovernmental Panel on Climate Change (IPCC), for example, 73% of all tropical forests will be cleared by 2100. 

Thirty percent of the additional carbon that has being accumulated in the atmosphere from human activities, over the past 150 years, has come from deforestation and changes in land use.

Fossil fuel use accounts for 70% of the additional carbon that has being accumulated in the atmosphere from human activities over the past 150 years.

A carbon intensity indicator measures tons of carbon emissions per million dollars of GDP.

According to the projected growth in carbon emissions, for 2010 Brazil will be emitting between 79 – 153 % above 1990 level.  

According to the projected growth in carbon emissions, for 2010 China will be emitting between 72 – 156 % above 1990 level.  

According to the projected growth in carbon emissions, for 2010 India will be emitting between 113 – 198 % above 1990 level.  

According to the projected growth in carbon emissions, for 2010 Korea will be emitting 233% above 1990 level.

According to the projected growth in carbon emissions, for 2010 Mexico will be emitting between 49%  – 78% above 1990 level.

It is predicted that the current extraction rate of fossil fuels will be consumed completely over the next 30 to 50 years.

Human activity contributes only 3% of the atmosphere’s greenhouse gases.

Carbon Dioxide levels have risen 30% in the last century.

The prestigious US economic consulting firm WEFA Inc. predicts that each US citizen will have to reduce his personal energy use by half in order to meet the Clinton commitment of 93%.

By 2020 (based on current projections) China, India, Argentina and Brazil together will account for some two thirds of all anthropogenic CO₂.

The United States, Canada and Australia are the world’s leading sources of emissions per capita.

The U.S. senate voted 95-0 the approval of the Byrd-Hagel resolution, which insists in the participation of developing countries as a prerequisite for the Kyoto Protocol ratification.

Fossil – fueled power generation, oil and gas development alone accounted for nearly 40% of project trade finance flow to developing countries from 1994 to the first quarter of 1999.

September 16 was designated by the General Assembly of the United Nations as International “Day for the Preservation of the Layer of Ozone"