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Carbon Dioxide

Environment

New material promises more efficient carbon capture

We've already seen a number of technologies developed for capturing carbon dioxide emissions from smokestacks or other sources, but many of them have a limitation – in order to reclaim the captured CO2 for disposal, a considerable amount of energy is needed. Now, however, scientists at the University of California, Berkeley have developed a new carbon-capture material that requires far less energy in order to give up its payload. Read More

Space

Engine running on frozen carbon dioxide may power mission to Mars

Future missions to Mars may well be powered by carbon dioxide fueled engines, thanks to a recent prototype developed by Northumbria and Edinburgh Universities. Exploiting a phenomenon known as the Leidenfrost effect, researchers hope that their engine could be powered by the vast amount of dry-ice deposits found on the red planet, thereby reducing the need to transport fuel on interplanetary missions.Read More

Environment

MIT study finds carbon sequestration may not be as effective as expected

Carbon sequestration may not, according to researchers at MIT, be the panacea that some had hoped. A recent study, partially funded by the United States Department of Energy, has found that far less carbon dioxide than the ideal prediction of 90 percent may be turned into rock when sequestered. This means much might eventually escape back into the atmosphere. Read More

Environment

MIT's new cement recipe could cut carbon emissions by more than half

As one of our most relied upon construction materials, concrete makes a significant contribution to our overall carbon emissions. Calcium-based substances are heated at high temperatures to form the cement, a process that produces carbon dioxide. But by slightly altering the quantities of materials used, scientists from MIT have uncovered a new method of cement mixing that could reduce these emissions by more than half.Read More

Space

MIT to test making oxygen on Mars

Oxygen is such an abundant resource on Earth that we rarely think about it unless we get locked in a cupboard. However, for space engineers, the question of how to get enough of the vital gas is constant, frustrating problem. To help future explorers of the Red Planet get enough oxygen for life support and powering spacecraft, NASA has included MIT’s MOXIE experiment on the Mars 2020 mission to study how to make oxygen out of the Martian atmosphere. Read More

Environment

Solar-powered electrochemical cell used to produce formic acid from CO2

Rising atmospheric CO2 levels can generally be tackled in three ways: developing alternative energy sources with lower emissions; carbon capture and storage (CCS); and capturing carbon and repurposing it. Researchers at Princeton University are claiming to have developed a technique that ticks two of these three boxes by using solar power to convert CO2 into formic acid.Read More

Environment

"Solar" jet fuel created from water and carbon dioxide

In a move that could help address our insatiable thirst for fuel while at the same time help cut CO2 emissions, scientists with the SOLAR-JET (Solar chemical reactor demonstration and Optimization for Long-term Availability of Renewable Jet fuel) project have recently shown that through a multi-step process, concentrated sunlight can be used to convert carbon dioxide into kerosene, which can then be used as jet fuel.Read More

Health & Wellbeing

Breathing easy while sleeping could combat symptoms of altitude sickness

Headaches, nausea, weakness and dizziness, combined with a feeling that you just can’t get enough oxygen with each breath are just some of the signs of altitude sickness. Researchers have now found a link between the abnormal breathing patterns experienced while sleeping at altitude and the symptoms of altitude sickness, particularly headaches. The finding suggests that finding a way to breath normally while sleeping could provide a way to combat such symptoms.Read More

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