America

5 results

Health in Transition

It is no longer rare for inhabitants of the Global South to die from cancer or diabetes. In these regions, non-communicable diseases now cause more deaths than infectious ones. This is due to changing diets and new—more urban and industrialised—lifestyle habits. Populations must also cope with the...

The effects of gold mining in rivers in French Guiana

A study conducted in the French Guiana basin where artisanal gold mining in occurs has shown there is mercury in the environment from these activities. It is even found in the piscivorous fish and indigenous communities that eat food from the rivers affected. These are important and innovative...
test-arsenic

The Uros of Bolivia, adept at neutralising arsenic

A study of women from various Bolivian communities shows that these peoples drink water containing elevated levels of arsenic on a daily basis. While the toxic effects of the regular ingestion of this substance are well known, these women’s bodies seem particularly adept at “neutralising” the poison...
black-bass

Biodiversity of freshwater fish in turmoil

In the last few centuries, 15% of new fish species have been introduced by Man into rivers across the world. Researchers have found that these introductions alter the ecosystem to a much larger extent than originally anticipated.
peche-el-nino

El Niño and weather hazards

The El Niño events of 2015 and 2016, heralded by similar early signs, had very divergent amplitudes. Their modelling highlights the importance of unpredictable high-frequency winds. The ability to predict the phenomenon is therefore severely limited.