CO2

We Can Use Container Ships to Sequester CO2

- Adam Clare

wind enhanced ship

Years of researchers looking into carbon sequestration have concluded two things:
1. It’s far better to reduce emissions than rely on sequestration to avoid climate catastrophe
2. Ocean-based sequestration is more efficient than direct air capture.

A team of researchers have found a way to get container ships to help with sequestration of carbon into the ocean by using an accelerated natural process. It’s well known that modern fossil-fuel powered shipping is very bad for the planet so the researchers wondered what if we could leverage the movement of ships on the water to spread limestone over greater distances? They modelled it out and this approach of using ships as a way to spread the carbon sequestration method is quite efficient and better than a stationary setup.

Calcium carbonate dissolution is the dominant negative feedback in the ocean for neutralizing the acidity from rising atmospheric carbon dioxide. Mimicking this natural process, the accelerated weathering of limestone (AWL) can store carbon as bicarbonate in the ocean for tens of thousands of years. Here, we evaluate the potential of AWL on ships as a carbon sequestration approach. We show a successful prediction of laboratory measurements using a model that includes the most recent calcite dissolution kinetics in seawater. When simulated along a Pacific shipping lane in the Estimating the Circulation and Climate of the Ocean–Darwin ocean–general circulation model, surface alkalinity and dissolved inorganic carbon increase by <1.4% after 10 years of continuous operation, leaving a small pH and partial pressure of carbon dioxide impact to the ocean while reducing 50% carbon dioxide emission in maritime transportation.

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Reducing CO2 Emissions by Targeting the 5% of Power Plants

- Adam Clare

Electric energy production using non-renewable processes produces an immense amount of carbon, and as a civilization we can’t afford to put more carbon in the atmosphere. Researchers from the University of Colorado Boulder set out to figure out how much pollution do power plants actually produce and what can we do about the worst ones. They found that 73% of pollution came from just 5% of power plants, unsurprisingly those plants used coal. So let’s shut them down!

According to the authors of the research, the emission intensity of the ten worst plants exceeded those of other fossil fuel power plants in their home countries in 2018 at a rate 28.2 percent to 75.6 percent higher than their counterparts. This suggests that the plants are very inefficient in burning coal, the research showed.
“Why these relatively inefficient plants are used so heavily is a topic ripe for future investigation,” the authors wrote.

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This Company Makes Products Out of Thin Air by Capturing co2

- Adam Clare
desert and stars

A materials company in Berlin wants to build the world using carbon taken our of the air – making it the first carbon-negative materials manufacture. Made of Air has sunglasses on the market and provides cladding material for buildings all made from a tried and tested method of capturing air based carbon, they then apply their unique method to make the carbon durable enough in these other settings. For every tone of plastic-like material they create they store about two tonnes of co2.

Over the next year, the company is ramping up its production capacity by 100 times to sequester 2,000 tonnes of CO2e each year.

Made of Air is a non-toxic bioplastic made from biochar. This charcoal-like material is almost pure carbon and is made by burning biomass such as forestry offcuts and secondary agricultural materials without oxygen.

Biochar has been produced for centuries and is increasingly being used as a fertiliser as well as a way of sequestering carbon in the soil.

Made of Air mixes biochar with a binder made from sugar cane to create a material that can be melted and moulded like a regular thermoplastic.

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Iceland’s Carbon Capture Plan Working

- Adam Clare

Iceland Puffing

Iceland already is one of the greenest places on the planet and they are going even further to try keep the whole planet green. The country is hosting a research project that has sucked 43,000 tons of CO2 out of the air and injected it into the ground. They’re capturing CO2 waste and then mixing it with water to decrease the amount of carbon in the atmosphere and the results are promising. This works well in Iceland due to the volcanic rock in the country (this doesn’t work as well with other types of rock).

Of course, the best thing to keep CO2 out of the atmosphere is to not generate it all by using sustainable energy and efficient energy use. Until we have a fully renewable grid and cut down consumer consumption we need to look into carbon capture.

Carbon Capture and Storage (CCS) is a technology promoted by the United Nations that can capture up to 90 percent of CO2 emissions that come from fossil-fuel sources and send them to an underground storage site—usually an old oil and gas field or a saline aquifer formation—so they don’t enter the Earth’s atmosphere.

Researchers and engineers in Iceland, alongside experts from France and the United States, have been working on one project that applies such CCS methods called CarbFix. For years, they’ve been holed up at Hellisheidi, a massive geothermal plant on a volcano near Reykjavik. The plant is built on a layer of porous basalt rock formed from cooled lava and, crucially, has easy access to the endless water supply underneath the volcano.

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1.2 Trillion Trees can Balance a Decade of CO2 Emissions

- Adam Clare 1 Comment
Forest

The anti-conservation “conservative” Ontario government recently announced they cancelled a program that helped plant 28 million trees. The goal of that program was to plant 50 million trees to reduce flooding (which parts of Ontario are currently suffering from), clean the air, and protect wildlife. Fortunately there are smarter governments outside of Ontario that realize we need trees to breath and live.

A study by ETH Zurich has revealed that if we plant 1.2 trillion trees we can essentially cancel out a decade of anthropogenic carbon emissions. That might sound like a lot of trees but we do have space for them and can easily reach that goal, as long as governments that care about people are voted in. You can act locally and plant a tree in your yard (if you have one).

There is enough room in the world’s existing parks, forests, and abandoned land to plant 1.2 trillion additional trees, which would have the CO2 storage capacity to cancel out a decade of carbon dioxide emissions, according to a new analysis by ecologist Thomas Crowther and colleagues at ETH Zurich, a Swiss university.

The research, presented at this year’s American Association for the Advancement of Science conference in Washington, D.C., argues that planting additional trees is one of the most effective ways to reduce greenhouse gases.

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