Category: climate crisis

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This “Revolutionary” New Air Filtering Device Might Be a Big Deal in the Fight Against Climate Change

Are you listening? Good.

A carbon dioxide filtering device that can capture carbon dioxide from the air at just 400 parts per million has been hailed as a “revolutionary” instrument for tackling our climate crisis.

Sahag Voskian and T. Alan Hatton, chemical engineers at MIT, developed the method, which captures CO2 by passing air through special charged plates.

Carbon dioxide from the gas intake reacts with the electrodes in the device. Each electrode is coated with a carbon nanotubes and a polyanthraquinone compound. The device acts sort of like a battery, and as it charges, it absorbs carbon dioxide passing over the electrodes. As it discharges, it releases the greenhouse gas it has collected.

The carbon dioxide it releases during the discharge can be recycled to feed greenhouse plants, or even used in carbonated beverages.

Dr. Voskian said, “All of this is at ambient conditions — there’s no need for thermal, pressure, or chemical input. It’s just these very thin sheets, with both surfaces active, that can be stacked in a box and connected to a source of electricity.”

The biggest advantage to this way of filtering is the low energy cost: one gigajoule of energy for every ton of carbon dioxide captured. Compare that to the 1-10 gigajoules (depending on the concentration of CO2 taken in) used by alternative methods. Plus, if to expand the systems capacity, they only need to add more electrodes!

Photo Credit: Wikipedia

The study describing the new system was published in the journal Energy and Environmental Science.

The scientists have even created a company called Verdox that plans to build a plant to scale the process up for commercial use.

Cleaner air with lower energy. There’s a real future for that.

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The Amazon Rainforest Is Burning, and It’s an Environmental Disaster

The Amazon rainforest is on fire, and experts say this wildfire will affect climate change for many years to come.

CNN reported that The National Institute for Space Research (INPE) has said the fires are burning at the highest rate they’ve seen since tracking started in 2013.

Sao Paulo, 1700 miles away, is seeing smoke from the fire’s blazes.

Video shows heavy smoke and smog overcoming the city and creating black out conditions.

Peru, Bolivia and Paraguay, too, are seeing heavy, black smoke coming from the Brazilian fires.

The INPE also reported there were 72,843 fires in Brazil this year. More than half of those fires burned in the Amazon. This represents an 80 percent increase in the total number of fires over last year.

Photo Credit: NASA Earth Observatory

Natural disasters can spark flames when the area is dry, but these fires are also frequently started illegally by ranchers trying to clear out forest to create grazing land for cattle. Environmentalists are blaming Brazil’s president, Jair Bolsonaro, for relaxing laws limiting deforestation and underplaying the disaster in general to the rest of the world.

According to the BBC, the Amazon rainforest contributes 20 percent of the Earth’s oxygen. Plus, the rainforest is home to millions of species of plants and animals, as well as over one million indigenous people.

The rainforest is critical to millions of lives and to the Earth, itself.

If the Amazon is destroyed, the World Wildlife Fund says the area will likely become a savannah, but inhospitable to people, animals or plants.

And instead of pumping out oxygen, the new savannah will be the Earth’s next major source of carbon emissions. Meaning, the Amazon will no longer serve as the lungs of the world, but will begin pump out enough carbon to actually drive the climate crisis.

This is bad news, folks. Bad news indeed.

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