University of Southampton scientists investigating ways of removing carbon dioxide (CO2) and other greenhouse gases from our atmosphere believe volcanic ash could play an important role.
A team from the University’s School of Ocean and Earth Science has modelled the impact of spreading volcanic ash from a ship to an area of ocean floor to help amplify natural processes which lock away CO2 in the seabed. They found the technique has the potential to be cheaper, technologically simpler and less invasive than other techniques to remove harmful gases.
The researchers’ findings are published in the journal Anthropocene.
Human-caused climate change is one of the most pressing topics in contemporary science and politics. The impact of hundreds of years of greenhouse gas emissions are becoming clearer every year, with environmental changes including heatwaves, droughts, wildfires, and other extreme weather events.
“As a result of overwhelming evidence, politicians
In the past half billion years of Earth’s history, there have been five widely-accepted major mass extinctions, but new findings published recently in Science Advances suggest that there may have been another—one that created conditions that allowed dinosaurs to take over the world.
The newly proposed mass extinction, which occurred during a period of time 233 million years ago called the Carnian Pluvial Episode (CPE), resulted in the loss of 33 percent of marine genera (the next-highest level of taxonomy above species) according to the study. Large volcanic eruptions in western Canada likely caused the event by emitting large amounts of greenhouse gases, causing rapid global warming and a period of increased rainfall that lasted roughly one million years. Afterward, climate conditions rapidly changed from rainy to arid, which, coupled with the increased plant growth