How will ocean acidification impact marine life?

Many marine organisms—such as coral, clams, mussels, sea urchins, barnacles, and certain microscopic plankton—rely on equilibrated chemical conditions and pH levels in the ocean to build their calcium-based shells and ...

New proxy reveals how humans have disrupted the nitrogen cycle

More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the atmosphere, soil or water, to ...

Two severe Amazon droughts in 5 years alarms scientists

New research shows that the 2010 Amazon drought may have been even more devastating to the region's rainforests than the unusual 2005 drought, which was previously billed as a one-in-100 year event.

UN-backed deforestation carbon credits failing: study

Only a small fraction of the forest-based carbon credits that companies and governments have purchased to offset their greenhouse gas emissions actually help prevent deforestation, according to new research.

Amazon's carbon uptake declines as trees die faster

The most extensive land-based study of the Amazon to date reveals it is losing its capacity to absorb carbon from the atmosphere. From a peak of two billion tonnes of carbon dioxide each year in the 1990s, the net uptake ...

A win-win-win solution for biofuel, climate, and biodiversity

Fossil fuel emissions release billions of tons of carbon into the atmosphere each year, which is changing the climate and threatening the sustainability of life on planet Earth. In Brazil, the demand for alternative energy ...

Global CO2 emissions to drop 4-7% in 2020, but will it matter?

Global CO2 emissions from fossil fuels are set to drop by up to seven percent in 2020 because of the coronavirus pandemic, but even this dramatic decline—the sharpest since WWII—would barely dent longterm global warming, ...

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