somehiker
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In 1975 new regulations required the installation of Catalytic Converters on most new gasoline powered vehicles. Although they certainly reduced and now virtually eliminate emissions of carbon monoxide and unburned fuel, these pollutants are converted to CO2 and water vapour, with water vapour being far greater in contributing to the greenhouse effect, than CO2. Anyone recall reading a study/scientific report about this subject
?
Here's something a few of you may have heard about.
https://www.bbc.com/news/world-europe-48795264
Amazing huh ? Convinced we are all gonna die ?
Well, not so fast....
For many years I have been fact checking these kinds of sensationalist news stories against their local Aviation METAR reports.
In almost every case where I have done so, usually when the news dwells large on such reporting as "proof" of AGW, I have found the same as you can see here.....
These charts are all based on actual temps recorded at Orly Airport in Paris, Fr., with the last chart showing how urban heat islands, which all larger airports are, have higher temps than their surrounding areas of development. Air Safety is dependent in part on accurate temperature readings, especially when determining how much runway an aircraft will require in order to get off the ground and climb. These reporting facilities, unlike the media or environmental scientists are not allowed to alter or fudge the results, or to rely on computer modelling in any way.

Here's something a few of you may have heard about.
https://www.bbc.com/news/world-europe-48795264
Amazing huh ? Convinced we are all gonna die ?
Well, not so fast....
For many years I have been fact checking these kinds of sensationalist news stories against their local Aviation METAR reports.
In almost every case where I have done so, usually when the news dwells large on such reporting as "proof" of AGW, I have found the same as you can see here.....
These charts are all based on actual temps recorded at Orly Airport in Paris, Fr., with the last chart showing how urban heat islands, which all larger airports are, have higher temps than their surrounding areas of development. Air Safety is dependent in part on accurate temperature readings, especially when determining how much runway an aircraft will require in order to get off the ground and climb. These reporting facilities, unlike the media or environmental scientists are not allowed to alter or fudge the results, or to rely on computer modelling in any way.