Earth Science

Air Fryers Found to Be the Least Polluting Cooking Method

Credit: PixabayAir fryers emit significantly less indoor air pollution than other cooking methods, such as pan and deep frying, according to a new study.While cooking is a major source of indoor air pollution, much of the research has focused on air fryers' energy efficiency, leaving their environmental benefits less explored. Since most people spend...

Fossil Fuel CO2 Emissions Rise Once More in 2024

Credit: PixabayGlobal carbon emissions from fossil fuels hit a record high in 2024, according to the latest research from the Global Carbon Project. Fossil CO2 emissions are projected to reach 37.4 billion tonnes, a 0.8% increase from 2023. Despite the urgent need to cut emissions to combat climate change, researchers say there is no...

Oceans release more sulfur and cool the climate more than expected.

Scientists have managed to quantify methanethiol emissions in the oceans on a global scale for the first time. Credit: PixabayResearchers have, for the first time, measured global emissions of a sulfur gas from marine life, showing it cools the climate more than previously believed, particularly over the Southern Ocean.A study published in Science Advances...

Is There Enough Land to Fight Climate Change and Feed the World?

A study led by MIT Center for Sustainability Science and Strategy researchers shows that there is enough land to support efforts to cap global warming at 1.5 degrees Celsius while addressing competing needs for long-term food security and ecosystem health. Credit: U.S. Department of EnergyLimiting global warming to 1.5°C is a challenging task. Reaching...

Previously Unknown Chemical Discovered in Drinking Water

Credit: PixabayDrinking water in developed countries is generally clean, yet invisible contaminants can still pose risks. For decades, scientists have puzzled over a mysterious “phantom chemical” in treated water. Now, researchers have identified this elusive compound, revealing it as entirely new to science.The Mystery of Chloramine By-ProductsChlorination is a common method for disinfecting drinking...

Scientists Alarmed by Unprecedented Coral Death in the Great Barrier Reef

Credit: PixabayAustralian research revealed on Tuesday that certain areas of the Great Barrier Reef have experienced the highest recorded coral mortality, with scientists concerned that other parts of the reef may have been affected in the same way.Coral Mortality and Environmental Stressors on the Great Barrier ReefHowever, the Australian Institute of Marine Science reported...

Solar Still Made of Old Tires Purifies Water at Less Than 1c/Liter

The new solar still has been tested in real world settingsCanadian scientists have developed an innovative device that can purify a gallon of water per day for just a few cents. Even better, this sustainable purifier is made from recycled tires and can also generate small amounts of electricity.Innovative Solar Still Turns Undrinkable Water...

Dark Oxygen Discovered in the Ocean: What Does It Mean?

Credit: PixabayPlants, whether in the ocean or on land, largely produce the oxygen essential for intelligent life as we know it through photosynthesis of carbon dioxide. However, new research suggests that depths with no light might generate oxygen without relying on living organisms.The authors of the study, published in Nature Geoscience, collected samples of...

Greenhouse Gas Concentrations Reach Record Levels as Scientists Raise Concerns

Credit: PixabayIn 2023, greenhouse gas concentrations in the atmosphere hit new record highs, ensuring future temperature rises for years ahead, the United Nations cautioned on Monday.The levels of the three primary greenhouse gases—carbon dioxide, methane, and nitrous oxide, which contribute to climate warming—have all risen once more over the past year, according to the...

Miracle Powder Removes CO2 from the Air More Effectively than Any Other Solution

COF-999, shown here in its form of a yellow powder, adsorbs a huge quantity of CO2 at room temperature, and can be reused at least 100 timesZihui Zhou / UC BerkeleyResearchers at the University of California, Berkeley have developed a powdery material that adsorbs carbon dioxide with remarkable efficiency. Just 200 grams (about 0.5...