Search results for dioxide

Planetary Sciences 12 hours ago

Looking for atmospheres in the ultimate quest for extraterrestrial life

To look for atmospheres around planets outside our solar system is to look for extraterrestrial life. Astronomist Sebastian Zieba has used data from the James Webb Space Telescope to study small rocky exoplanets but found ...

Materials Science 12 hours ago

Simple new process stores carbon dioxide in concrete without compromising strength

By using a carbonated—rather than a still—water-based solution during the concrete manufacturing process, a Northwestern University-led team of engineers has discovered a new way to store carbon dioxide (CO2) in the ubiquitous ...

Environment 16 hours ago

Five ways to improve the global voluntary carbon credit markets

The severity of climate change means we all need to reduce our carbon footprint to zero as quick as possible, including companies. The voluntary carbon markets were set up to allow companies to buy and sell carbon credits ...

Optics & Photonics 17 hours ago

Engineers produce the world's first practical Titanium-sapphire laser on a chip

As lasers go, those made of Titanium-sapphire (Ti:sapphire) are considered to have "unmatched" performance. They are indispensable in many fields, including cutting-edge quantum optics, spectroscopy, and neuroscience. But ...

Economics & Business 18 hours ago

The price is wrong: Researchers explore farmers' interests in carbon markets

The United States, along with 123 other countries, have pledged to reach "net-zero" carbon emissions by 2050 or 2060. A number of strategies are being deployed to reach this ambitious goal, but the one most pertinent to South ...

Environment 20 hours ago

Some landfill 'burps' contain airborne PFAS, study finds

Many municipal landfills "burp" gas from decomposing organic matter rather than letting it build up. And burps from buried waste containing per- and polyfluoroalkyl substances (PFAS) can release these "forever chemicals" ...

Materials Science Jun 25, 2024

Not all calcite crystals perfect; synthesis methods can alter internal structure, affect chemical reactivity

When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a distorted cube. One of Earth's ...

Ecology Jun 25, 2024

Pauses in human activity benefit biodiversity

A study published in Global Ecology and Conservation shows that COVID-19 lockdowns had a positive impact on the quality of species' habitats.

Environment Jun 25, 2024

Amazon rainforest faces drought risk despite carbon removal efforts

The Amazon rainforest, the world's largest tropical rainforest, plays a crucial role in regulating the global climate. Absorbing about 220 million tons of CO2 annually, it acts as a carbon sink, a natural system that absorbs ...

Earth Sciences Jun 25, 2024

Sediments reveal the ancient ocean during a mass extinction event

About 183 million years ago, volcanic activity in modern South Africa unleashed an estimated 20,500 gigatons of carbon dioxide (CO2) into the ocean–atmosphere system over a period of 300 to 500 thousand years. Known as ...

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