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News — Carbon Dioxide (CO2)

Bacteria that Absorbs CO2 Found on Ocean Floor

Bacteria that Absorbs CO2 Found on Ocean Floor
Scientists have discovered a new type of bacteria that could redefine what they know about the marine carbon cycle on the ocean floor.

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Can Lowering Global CO2 Levels be Profitable?

Can Lowering Global CO2 Levels be Profitable?
What if capturing or reusing atmospheric carbon dioxide was a profitable business? Instead of using tax dollars or carbon capture credits, industry would seek out new ways to make money - and jobs - with the added benefit of reducing global CO2 levels.

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CO2 Refrigeration in Ice Rinks

The recently remodeled Dollard-des-Ormeaux Civic Centre in Quebec, Canada uses a carbon dioxide refrigeration system to freeze the floor of the ice rinks as well as provide building heating. The details of this project were published in a paper titled “CO2 Showcase for Ice Rinks, Pools” by Kateri Heon and Pietro Guerra from exp. Inc. in the August, 2015 ASHRAE Journal. According to the authors, what immediately emerged from the study was that: CO2 offered significant advantages for the project, compared to ammonia. This is despite ammonia compressors having an average coefficient of performance (COP) value of 3.45, which is...

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Can CO2 influence plant transpiration and biodiversity?

Can CO2 influence plant transpiration and biodiversity?

Guest post by Michael Forster, Edaphic Scientific Pty Ltd Everyone knows that plants need carbon dioxide to grow. But fewer people know that carbon dioxide can also effect plant transpiration and even the water balance of entire ecosystems and catchments. Even fewer people know that carbon dioxide can affect biodiversity and which plant species are more common than other species. Let’s just leave aside all of the topics on how increasing carbon dioxide is leading to global warming and how this, in turn, is impacting on plant species. Let’s just focus purely on how increasing atmospheric carbon dioxide changes the...

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Why are the CO2 Levels Different Between 2 Devices?

A customer recently wrote us and asked, "I am testing a SenseAir K-30 CO2 Sensor next to a desktop CO2 meter. The K-30 is reading 778ppm, while the desktop meter shows 846ppm. Which one is correct?" The simple answer is that they are both correct! Yes, they are different, but both sensors are working within their rated accuracy. What does that mean? How is CO2 sensor accuracy defined? The accuracy of a CO2 sensor is defined as how close the measurement is to a reference gas, expressed as either a ± (plus-minus) value in parts-per-million (ppm) or as a percentage (%)...

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