Tag Archives: charcoal

Where Does Charcoal, or Black Carbon, in Soils Go?

Scientists find surprising new answers in wetlands such as the Everglades

Scientists have uncovered one of nature’s long-kept secrets–the true fate of charcoal in the world’s soils.

The ability to determine the fate of charcoal is critical to knowledge of the global carbon budget, which in turn can help understand and mitigate climate change.

However, until now, researchers only had scientific guesses about what happens to charcoal once it’s incorporated into soil. They believed it stayed there.

Surprisingly, most of these researchers were wrong. (more…)

Read More

Study Provides New Insights on Drought Predictions in East Africa

Research May Also Help Determine Effects of Global Warming in the Region

With more than 40 million people living under exceptional drought conditions in East Africa, the ability to make accurate predictions of drought has never been more important. In the aftermath of widespread famine and a humanitarian crisis caused by the 2010-2011 drought in the Horn of Africa—possibly the worst drought in 60 years— researchers are striving to determine whether drying trends will continue.

While it is clear that El Niño can affect precipitation in this region of East Africa, very little is known about the drivers of long-term shifts in rainfall. However, new research described in the journal Nature helps explain the mechanisms at work behind historical patterns of aridity in Eastern Africa over many decades, and the findings may help improve future predictions of drought and food security in the region. (more…)

Read More

Archaeologists Find New Evidence of Animals Being Introduced to Prehistoric Caribbean

An archaeological research team from North Carolina State University, the University of Washington and University of Florida has found one of the most diverse collections of prehistoric non-native animal remains in the Caribbean, on the tiny island of Carriacou. The find contributes to our understanding of culture in the region before the arrival of Columbus, and suggests Carriacou may have been more important than previously thought.

The researchers found evidence of five species that were introduced to Carriacou from South America between 1,000 and 1,400 years ago. Only one of these species, the opossum, can still be found on the island. The other species were pig-like peccaries, armadillos, guinea pigs and small rodents called agoutis. (more…)

Read More

U of T Researchers Explore Charcoal’s Potential to Reverse Climate Change

It’s black, it’s gritty, it’s essential for barbecues—and it just might save the world from global warming.

Biochar, a kind of charcoal that is rich in carbon, traps CO2 from the atmosphere and can store it in soils for hundreds to thousands of years, says Professor Nathan Basiliko, a soil scientist at U of T Mississauga’s Department of Geography. Now, Basiliko and colleagues in the Faculty of Forestry are poised to demonstrate that wood waste from Ontario’s forest industry could be used to produce energy and biochar, making the wood a truly carbon-negative biofuel. (more…)

Read More