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Sponsored content: Green chiller is cool choice

Envirotec Magazine

Mackie’s green initiative involves replacing the gases used in its refrigeration plants from HCFC – which have a very high global warming potential – to ammonia, an environmentally-friendly refrigerant that has no impact on global warming or ozone depletion. www.gea.com.

Cooling 130
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Can ACs cool the world without warming it?

Grist

Several companies, including Gradient where Romanin is CEO (which landed him on the 2021 Grist 50 list ), are developing new AC technologies and approaches that are starting to show what a more efficient, less climate-intensive approach to cooling will look like. “And that absolutely doesn’t need to be true.”

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US, China commit to phase down climate-warming HFCs from refrigerators and air conditioners – but what will replace them this time?

Renewable Energy World

CFCs were destroying the ozone layer high in the Earth’s atmosphere, which is essential for protecting life from the Sun’s harmful ultraviolet radiation. How HFCs keep rooms and food cool. But when they break down, they create chlorine that reacts with the protective ozone, letting dangerous radiation through to the Earth’s surface.

Ozone 71
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Measuring NOx in combustion

Envirotec Magazine

The chemiluminescence reaction of ozone and nitric oxide causes the oxidation of nitric oxide (NO) to nitrogen dioxide (NO2) which generates photons that are measured using a photomultiplier tube. Typically, at Signal Group, the flows of ozone and sample are set in a ratio of 10:1. Ozonator design. NO2 converter. Vacuum pump.

Ozone 130
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Planned UK spaceports could add significantly to emissions of climate-warming gases

Envirotec Magazine

Although other particulate matter such as alumina is thought to cool the atmosphere, research into rocket launch emissions is inconclusive. The global launch rate has already more than doubled over the past decade, with plans to dispatch a further 2,000 satellites globally by 2030.

Ozone 268
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Building Sustainability Checklist: 28 Tips to Make Your Building More Eco-Friendly.

Green Business Bureau

Follow this checklist to help your building become more sustainable in the following areas: lighting, construction, heating and cooling, water, energy, waste, indoor environment, landscaping, and maintenance. Heating and Cooling. Sustainable operation and maintenance. Building Sustainability Checklist.

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Carbon emissions are shrinking the stratosphere

AGreenLiving

It is home to the ozone layer , which protects the Earth from harmful UV rays. Alternatively, as carbon dioxide reaches the stratosphere, it instead cools the air and causes it to contract. The ozone layer has recovered since 1989, when CFCs were banned. But the stratosphere has continued to shrink over this period.

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