Carbon Sequestration

Rendering of a large-scale Captura facility that captures carbon dioxide from ocean water

Technology

Captura facility could remove gigatons of carbon dioxide from the ocean

Captura Corporation has developed a revolutionary plan to remove carbon emissions by creating an aquatic purification facility in the middle of the sea. The company intends to extract carbon dioxide from ocean water using only renewable electricity.

A new cement recipe containing up to 30% treated biochar could make for carbon-negative concrete

Materials

New recipe makes concrete that absorbs more CO2 than it emits

Concrete is one of the largest single sources of human-induced carbon dioxide emissions. Engineers at Washington State University have now developed a new method for making concrete that absorbs more carbon than it emits.

Salt has preserved everything from fish to cucumbers over the years, so why not carbon-containing crops as well?

Environment

Salted crops seen as powerful tool to combat climate crisis

Could salt, one of the oldest preservatives around, help keep carbon deep underground for thousands of years? Researchers believe it can, and that it might offer a way forward in containing a gas that's a major contributor to climate change.

A team of MIT researchers has discovered that adding an inexpensive ingredient to concrete may reduce the amount of carbon dioxide creating during its production

Materials

An inexpensive ingredient may reduce concrete’s climate impact

After water, concrete is the world’s most consumed material, and concrete production’s impact on the environment is significant. Researchers have discovered that an inexpensive ingredient may be the answer to reducing concrete's climate impact.

The Andes system incorporates carbon-consuming microbes which live in the roots of crop plants

Environment

Andes microbial tech uses farmers' fields to capture greenhouse gases

While crops do sequester some atmospheric carbon dioxide (CO2) via photosynthesis, they could always use a bit of help. California startup Andes is aiming to provide that help, by putting carbon-capturing microbes in the soil of farmers' fields.

Project Greensands will capture and liquefy industrial carbon emissions, then ship that carbon out to sea and pump it into old oil fields to refill them

Environment

Denmark reverses the direction of an oil rig for bulk carbon storage

Denmark is moving forward with Project Greensands, an initiative that will take huge quantities of captured carbon out to an oil rig in the North Sea, and pump it down to sequester it in the sandstone formations that once held oil and gas.

Project Bison is expected to remove five million tons of CO2 each year by 2030

Environment

World’s biggest carbon capture plant set for Wyoming

The US state of Wyoming is set to welcome the world’s largest direct air capture plant for the removal of atmospheric carbon dioxide. Called Project Bison, the facility is expected to suck up five million tons of CO2 each year by 2030.

Climeworks has broken ground on Mammoth, which is set to become the world's largest direct air capture plant

Environment

Work begins on Mammoth, the world's largest CO2 direct air capture plant

Swiss outfit Climeworks has today broken ground on its second direct air capture plant in Iceland, and one that marks significant progress in its ambitions of removing gigatons of CO2 from the atmosphere each year by 2050.

Researchers have developed a new carbon capture system that they claim is the world's fastest, and has an efficiency of 99 percent

Environment

World's fastest carbon capture system claims 99% efficiency in ambient air

Carbon capture could be an important tool to fight climate change. Researchers have now developed a new compound that can reportedly remove carbon dioxide from ambient air with 99 percent efficiency and at least twice as fast as existing systems.

Brilliant Planet says it can slash the cost of direct air carbon capture while de-acidifying the ocean, using carefully selected local strains of algae cultivated in pools of seawater

Environment

Brilliant Planet plans cheap, gigaton-scale carbon capture using algae

Direct air carbon capture is currently far too costly – but this London company says it can do it at enormous scale for a tenth the price, using engineered algal blooms in ponds located near desert coastlines. Oh, and it'll de-acidify the ocean, too.

A $100-million XPrize contest is hoped to conjure up some game-changing approaches to carbon capture

Environment

Elon Musk's Carbon Removal XPrize dishes out $1M milestone awards

An XPrize competition designed to develop solutions to the mounting levels of carbon dioxide in the atmosphere has progressed to its next phase, with 15 teams from around the world each awarded US$1 million to continue developing their technologies.

University of Illinois Chicago scientists have developed a new "artificial leaf" system to capture CO2

Technology

Novel "artificial leaf" design ups the carbon capture rate by 100x

"Artificial leaf" systems could play a key role in the fight against climate change, and a team of engineers has just picked up the pace with a solution that captures carbon dioxide at 100 times the rate of current technologies.