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How cleaning up shipping cut pollution — and warmed the planet

Grist

Michael Diamond thought he’d have to wait until this year, at least, to have enough data to understand how a shipping regulation aimed at curbing pollution affected the clouds that deck the ocean. When industries around the world emit fewer of these pollutants, clouds darken. “They’re so variable.

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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. The regulatory environment surrounding refrigerants is continuously evolving.

Cooling 88
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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. Black carbon and similar pollutants are also the leading environmental cause of premature deaths, being key components of fine particulate matter (PM2.5). air pollution each year.

Ozone 268
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Measuring NOx in combustion

Envirotec Magazine

For example, in 2015, the UK’s Committee on the Medical Effects of Air Pollutants (COMEAP) reviewed the available evidence and concluded: “Studies have shown associations of NO2 in outdoor air with adverse effects on health, including reduced life expectancy. Ozonator design. NOx measurement in product development. NO2 converter.

Ozone 130
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Green City Solutions fights air pollution with IoT, biotech and moss

Green Tech Challenge

Air pollution is becoming a global threat as 90% of urban populations breaths polluted air. In December 2016, the Chinese government reported the highest air pollution and the red alert was implemented in 23 cities in northern China. Examples of those harmful pollutants are nitrous oxides, ozone and particulate matter.

IoT 73
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Building Sustainability Checklist: 28 Tips to Make Your Building More Eco-Friendly.

Green Business Bureau

Reducing emissions, pollution, and environmental degradation. Creating healthy indoor environments with low pollution. 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.

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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