Cleaning up the dangerously polluted Guanabara Bay in the next year for sailing events is the biggest challenge facing Rio de Janeiro Olympic organizers.
The U.S., Brazil and China all released major commitments to reduce or at least slow their greenhouse gas emissions. Continue reading →
Hundreds of thousands of people scrape out a living picking through garbage in Brazil. About 850 of them have been recruited to work in Brazil's 12 host stadiums.
The Magellanic penguin normally migrates from Argentina to southern Brazil around this time of year, but there are normally fewer than 500 dead birds found on the beaches each year.
The world's largest eddies are spinning off the coast of Brazil.
Soybeans and sugarcane crops have increased deforestation of the Amazon in Brazil, but not directly.
Diamond inclusions indicate that Earth's carbon cycle extends from the surface to the deep lower mantle.
Without rain, a rainforest doesn't last too long.
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