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Climate Change

Clean air linked to increase in hurricanes

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Scientists have revealed efforts to reduce air pollution have come with an unintended consequence — an increase in hurricane activity

A 50 per cent decrease in aerosols over the past four decades has led to a 33 per cent increase in the number of tropical cyclones in the North Atlantic according to NOAA Research.

Meanwhile, a 40 per cent increase in aerosol pollution in China and India over the same period actually sparked a 14 per cent decline in the number of tropical cyclones in the region.

During this time air pollution surged throughout China and India, as the nations’ saw a boom in economic and industrial growth.

Aerosol pollutions are particles in the air produced by vehicles and factories which burn fossil fuels.

Aerosols cause poor air quality and are bad for human health, but do not cause global warming like carbon dioxide or methane.

In fact aerosols have an overall cooling effect on the climate by reflecting sunlight back to space.

“Decreasing aerosol emissions is something that’s good for human health; but on the other hand, we found there are some bad effects when we reduce aerosol emissions — and that is hurricane activity,”

Hiro Murakami, researcher, noaa

The lead author of the study, Hiro Murakami says this doesn’t mean governments should stop trying to reduce air pollution.

“Aerosol decrease may lead to good health, but on the other hand, hurricane risk increases. This is where good things accompany bad things. It’s kind of like pros and cons.” He says.

Researchers found the United States’ Clean Air Act and similar actions in Europe led to the ocean absorbing more sunlight, leading to warmer sea surface temperatures and therefore, more storms.

Climate Change

Thunderstorm asthma warning for millions of Australians

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Australians are being warned to stay indoors, as wild weather approaches

As wild weather approaches Australia, there has been a Thunderstorm asthma warning, with some experts saying it could be the worst thunderstorm asthma event since 2016.

In Australia, experts say the ‘perfect storm’ is well and truly on its way.

Melbourne is dubbed the world’s allergy capital by some researchers and residents are warning to brace for a thunderstorm asthma event.

Asthmatics in the country, are urged to prepare for the peak event as it will put allergy and asthma sufferers at risk.

In 2016 ten people died in a thunderstorm asthma event that rocked the nation.

Deadly storms triggered thousands of asthma attacks and there’s fears that will happen again.

The director of two of the state’s pollen monitoring stations has warned the state is “overdue” for another deadly storm

In fact all of Australia’s eastern states are being warned of intense weather systems over the coming days.

Sydney recorded its wettest year in 164 years, with more heavy downpours expected to fall over Australia’s largest city.

The wild weather can be blamed on the La Nina weather phenomenon. The country remains in the grip of a rare third straight year weather event.

The wild weather is expected to continue sporadically for the rest of the year. The advice is to stay indoors, watch out for flash flooding and stay off the roads.

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Business

Rolls-Royce Plc CEO slams aviation for failing on climate targets

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Aviation needs to act on net-zero targets, according to the CEO of Rolls-Royce Plc

Warren East says the sector needs to move towards bio-fuels like hydrogen and electric aircraft.

He believes travellers can look forward to flying on planes that has a gas turbine that’s burning hydrogen.

Speaking at a conference in London, East says transitional technology is the answer that plane-makers are searching for.

“Ultimately, one day I’m pretty confident that you’ll be able to fly from here to San Francisco on an aircraft with something like a gas turbine burning hydrogen, but there’s no way that we’re going to be doing that in the next 15 years.”

WARREN EAST, CEO OF ROLLS-ROYCE PLC

Some companies are already looking at sustainable fuels (SAF), which can offer 80 per cent off carbon emissions across their lifetime.

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Climate Change

Hurricane Ian leaves a path of destruction

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Hurricane Ian leaves a path of destruction as clean-up begins

Hurricane Ian leaves a path of destruction as residents in the impacted areas begin picking up the pieces.

Searches are continuing in some of the hardest-hit regions of Florida.

Miami-Dade Fire Rescue Florida Task Force One members are conducting evacuation operations via helicopter.

The department said the area around Sanibel Island still remains inaccessible.

“Throughout the search and rescue operations, our crews encountered several elderly residents that needed to be evacuated from those areas that have sustained severe structural damage and have been only accessible by air rescue,” MDFR said in the release.

It added, “due to the inaccessibility, evacuations operations have been conducted via helicopters.

Assisted by the Florida National Guard and the United States Coast Guard, crews have been utilising a hoist to rescue and transport residents out of the island and into a safe zone in the mainland where they can receive medical attention.”

Ian weakened as it made its way northeast through Virginia.

The death toll stands at 78, with at least 74 people losing their lives in Florida and four in North Carolina.

U.S. President Joe Biden and his wife, Jill will now travel to Puerto Rico to assess the damage before moving onto Florida.

It comes as officials in Florida’s Lee County face growing questions over delayed mandatory evacuations when the storm first hit.

The Hurricane battered the states’ critical infrastructure.

Almost 800,000 customers in Florida and 10,000 in North Carolina remain without power.

Meanwhile, Orlando residents have been urged to conserve water after Ian damaged the city’s sewerage system.

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