Page 15 - Climate Control News September 2022

Refrigerants
Methane emissions rising again
LANDFILLS ARE RELEASING a lot more meth- ane into the atmosphere than previously throught, a new study has found.
Scientists used satellite data from four major cities worldwide which found that emissions from landfills in 2018 and 2019 were 1.4 to 2.6 times higher than earlier estimates.
Data came from Delhi and Mumbai in India, Lahore in Pakistan and Buenos Aires in Argentina. The study aims to pinpoint specific sites of
major concern.
When organic waste like food, wood or paper
decomposes, it emits methane into the air. Landfills are the third-largest source of meth- ane emissions globally, after oil and gas systems
and agriculture.
Although methane only accounts for about 11
per cent of greenhouse gas emissions and lasts about a dozen years in the air, it traps 80 times more heat in the atmosphere than carbon dioxide does. Scientists estimate that at least 25 per cent of today's warming is driven by methane.
"This is the first time that high-resolution sat-
RIGHT: The Permian Basin in the US which is home to the world’s super emitters.
ellite images have been
used to observe landfills
and calculate their
methane emissions,"
according to Joannes Maasakkers, lead author of the study and atmospheric scientist at the Neth- erlands Institute for Space Research.
Satellite data to detect emissions is still a rela- tively new field, but it's being used more and more to observe gases across the world.
It means more independent organizations are tracking greenhouse gases and identifying big emitters, whereas previously government figures were the only source available.
According to Kayrros, a firm that analyzes satellite data, methane emissions from fossil fuels have intensified and are heading in the wrong direction.
Kayrros said methane emissions have climbed despite the launch of the Global Methane Pledge last year.
About 110 countries have signed on to the Global Methane Pledge, vowing to cut methane emissions by 30 percent by 2030. Australia is not a signatory.
In the Permian Basin, the most prolific US oil and gas basin, methane emissions in the first quarter of 2022 jumped 33 per cent from the pre- vious quarter, and soared by 47 per cent from the first quarter a year earlier, Karryos said.
The emissions in the first three months of this year also exceeded emissions in the fourth quar- ter of 2019, before the pandemic hit.
company’s ability to master new technologies and successfully introduce these to the market. Liebherr-Transportation Systems provides heating, ventilation and air conditioning sys- tems (HVAC systems) for driver's cabs and the passenger area, various cooling systems for e-mobility applications without overhead lines, thermal management systems for electronics as
well as hydraulic drive systems.
Crossing borders with CO2
AIR CONDITIONING SYSTEMS using natu- ral refrigerant (CO2)are being installed in pas- senger trains in Austria.
Liebherr-Transportation Systems has received an order from Siemens Mobility Austria to supply air conditioning units for 21 Viaggio intercity passenger trains.
Final delivery of the units to Austrian Federal Railways (OBB) will take place in December, 2022.
There is also an option to provide air condi- tioning for another 500 carriages.
The air conditioning units are new technology for the rail sector and will predominantly be used in cross-border operations to Germany and Italy.
Liebherr-Transportation Systems GmbH & Co KG, managing director and head of sales, Dirk Junghans, said the contract is expression of the enormous trust which Siemens places in the
The units are new technology for the rail sector.
CLIMATE CONTROL NEWS SEPTEMBER 2022
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