Aerosol

• Falcon Safety Products is a reputable manufacturer known for producing compressed-gas dusters and signal horns, including the popular Dust-Off® brand of consumer electronics cleaning accessories.
• They also have a strong presence in the marine and safety signal horns market.
• Eric Warnhoff, President and CEO of The Lighthouse for the Blind, expressed his satisfaction with the acquisition, stating, "The acquisition of Falcon Safety Products is a significant milestone for the Lighthouse.
• Falcon Safety Products will now be part of LHB's portfolio of commercial brands, including Quake Kare®, Tear Mender®, RapidFix®, and Badge Magic®.

• The funding will support a second phase of research and clinical trials via the LongCovid Research Consortium (LCRC): a global scientific collaboration to rapidly and openly study core biological drivers of Long COVID.
• LCRC research thus far demonstrates that reservoirs of the virus can persist for months - or even years - in the tissue of Long COVID patients.
• "Mechanisms underlying Long COVID are not a mystery," says Dr. Amy Proal PhD, PolyBio's Chief Scientific Officer.
• "The persistence of SARS-CoV-2 in tissue is a major target for rapid research and clinical trials."

• Australia’s Reef Restoration and Adaptation Program – a collaboration between several universities, CSIRO and the Australian Institute of Marine Science – is exploring whether cloud brightening could reduce coral bleaching.
• We started exploring cloud brightening after the mass bleaching event in 2016.
• Then we began pilot testing in the central Great Barrier Reef near Townsville during January 2020.

A bright idea

• Recently, scientists have begun to consider regional rather than global application of cloud brightening.
• Could brightening clouds directly over the Great Barrier Reef for a few months reduce coral bleaching during a marine heat wave?
• The sea salt particles sprayed in the process typically only persist in the atmosphere for one to several days.
• Read more:
  We are poised to pass 1.5℃ of global warming – world leaders offer 4 ways to manage this dangerous time

How do you brighten a cloud?

• A warm cloud (as opposed to an ice cloud) is a collection of small water droplets floating in the air.
• Every droplet begins with the condensation of water vapour around a nucleus, which can be almost any kind of tiny particle suspended in air.
• Typically, in the lower atmosphere over land there are thousands to tens of thousands of these tiny particles suspended in every cubic centimetre of air.
• To brighten such clouds, we can spray large quantities of microscopic seawater droplets into the air.

Testing the theory

• Although scientists have researched cloud brightening for more than 30 years, no one had ever directly tested the theory.
• In Australia, we have now developed technology to a point where we are starting to measure the response of the clouds.

Not so far-fetched

• The Intergovernmental Panel on Climate Change estimates humanity’s unintentional release of aerosols offsets around 30% of the warming effect due to greenhouse gases.
• Sulphates in ship exhaust are such a potent source of aerosols for droplet formation, the passage of ships leaves cloud trails called ship tracks.

• Atlanta, Oct. 04, 2023 (GLOBE NEWSWIRE) -- ASHRAE is the leader in the development of guidance proven instrumental in safeguarding public health.
• Now, the Society’s pioneering resource, ASHRAE Standard 241, Control of Infectious Aerosols is empowering building owners, operators and professionals to proactively protect indoor environments during this fall and winter virus season.
• "The world knows ASHRAE’s leadership in sustainable, energy efficient building technology, but we are also leaders in the development of public health standards that are making incredible impacts on building occupants around the world,” said 2023-24 ASHRAE President Ginger Scoggins, P.E., Fellow ASHRAE.
• For more information on ASHRAE Standard 241, including related resources, visit ashrae.org/Standard241 .