An integrated, net-negative system captures carbon and produces ethylene
Engineers at the University of Illinois Chicago have built a machine that captures carbon from flue gas and converts it to ethylene.
Dec 12, 2022
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141
Energy & Green Tech
Engineers at the University of Illinois Chicago have built a machine that captures carbon from flue gas and converts it to ethylene.
Dec 12, 2022
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141
Energy & Green Tech
Engineers in Melbourne have used sound waves to boost production of green hydrogen by 14 times, through electrolysis to split water.
Dec 12, 2022
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Engineering
Northern California has some of the strongest offshore winds in the U.S., with immense potential to produce clean energy. But it also has a problem. Its continental shelf drops off quickly, making building traditional wind ...
Dec 9, 2022
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Energy & Green Tech
Water and wood may one day be all that's needed to provide electrical power for a household. At a time when energy is a critical issue for many millions of people worldwide, scientists in Sweden have managed to generate electricity ...
Dec 8, 2022
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Energy & Green Tech
A planned underwater hydrogen pipeline connecting Barcelona and Marseille is a risky project, but one that is key for the European Union's energy independence.
Dec 7, 2022
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Energy & Green Tech
People are increasingly trying to grow both food and clean energy on the same land to help meet the challenges of climate change, drought and a growing global population that just topped 8 billion. This effort includes agrivoltaics, ...
Dec 6, 2022
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Energy & Green Tech
An almost limitless supply of fresh water exists in the form of water vapor above Earth's oceans, yet remains untapped, researchers said. A new study from the University of Illinois Urbana-Champaign is the first to suggest ...
Dec 6, 2022
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Energy & Green Tech
In the quest to be able to store renewable solar and wind energy on the electric grid to be used at times when the sun isn't shining and the wind isn't blowing, scientists are investigating a number of different types of ...
Nov 29, 2022
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Energy & Green Tech
A British start-up founded by two ex-students from France and Spain, crafting biodegradable packaging from marine plants, is aiming to seal royal approval this week when Prince William unveils his latest Earthshot prizes.
Nov 28, 2022
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Energy & Green Tech
In "Star Wars," Luke Skywalker grows up on the hot desert planet Tatooine. His family owns a moisture farm that uses devices called "vaporators" to pull drinking water from the air.
Nov 26, 2022
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Water is a ubiquitous chemical substance, composed of hydrogen and oxygen, that is essential for the survival of many known forms of life. In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam. Water covers 71% of the Earth's surface. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Saltwater oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products. Other water is trapped in ice caps, glaciers, aquifers, or in lakes, sometimes providing fresh water for life on land.
Water moves continually through a cycle of evaporation or transpiration (evapotranspiration), precipitation, and runoff, usually reaching the sea. Winds carry water vapor over land at the same rate as runoff into the sea. Over land, evaporation and transpiration contribute to the precipitation over land.
Clean, fresh drinking water is essential to human and other lifeforms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70 percent of freshwater is consumed by agriculture.
This text uses material from Wikipedia, licensed under CC BY-SA