Energy production based on sources of energy that do not run out, for example wind, water and solar power.
Two worlds join forces in Mexico -- academia and common folk -- to confront environmental problems.
Areas on the surface of the sun, which in periods are a little colder than the rest of the surface and appear as dark spots.
The touristic city of Neochea, Argentina, is putting together a pioneering plan for the compulsory collection of used cooking oil from restaurants in order to produce biodiesel.
Some 100 lawmaker from the 13 most polluting countries of the planet gathered Jun. 12-13 in the Italian capital to pursue an effective international agreement to fight climate change.
Despite its great potential for energy from the sun, wind and water, Mexico has not taken advantage of the Clean Development Mechanism laid out in the Kyoto Protocol on climate change.
Rio de Janeiro's largest slum has halted construction of a much-criticized wall in exchange for ecological and recreational corridors between the impoverished neighborhood and a city forest.
Mexico, chosen as this year's headquarters for celebrations of World Environment Day, is lagging behind in developing renewable energy sources.
In less than a week, some 30,000 people participated in an action to demand potable water for the residents of the Matanza-Riachuelo watershed in Buenos Aires, the country's most polluted waterway.
The Honduran Armed Forces launched a campaign to plant one million trees in the country's most vulnerable areas, deputy Defense minister Lionel Sevilla told Tierramérica.
The Federal Electricity Commission of Mexico has put off until 2018 the construction of La Parota dam, in the southern state of Guerrero, but residents there say they will never allow it to be built.
The "My House My Life" program, which is slated to finance one million low-income housing units in Brazil in a bid to reactivate the economy and create jobs, will also promote the use of environmentally friendly materials and technologies, including solar energy.
"When the first great climate disaster strikes, I hope we will all pull together just as if our nation were being invaded," says British scientist James Lovelock in this exclusive Tierramérica interview.
The Orinoco Delta, Venezuela's youngest geological area at just one million years old, has been added to the network of 544 biosphere reserves of UNESCO (United Nations Educational, Scientific and Cultural Organization).
Environmental groups in Chile oppose President Michelle Bachelet's decision to lower the maximum tax on gasoline until April 2010.
Amidst the violence of civil war and the illegal coca trade, a handful of Colombian farmers have embraced chocolate production in the Amazon forest.
The oil exploration effort that the Honduran government plans for parts of the Caribbean coast endangers the marine areas of the Mesoamerican biological corridor, warned the Environmental Prosecutor's Office.
"It's like the pre-World War II calm," says British scientist James Lovelock in describing the human situation and lack of action to adapt to global climate change.
Cuban scientists have warned that this Caribbean island nation lacks an updated inventory of invasive plant species and sufficient information about the real damage they cause the ecosystems.
The University of São Paulo has opened Brazil's first government-run center for recycling electronic waste.
Jaragua National Park, famous for housing the world's tiniest reptile, will itself be in danger if the green light is given to mega-hotel projects instead of ecotourism and sustainable development initiatives, say Dominican ecologists.