Re: Climate Change - record World temp. rises in Feb.
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Re: Climate Change - record World temp. rises in Feb.
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You really shouldn't be so gullible as to believe everything scientists come up with. They have been wrong so many times before. ---------- Post added at 07:28 ---------- Previous post was at 07:27 ---------- Quote:
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Re: Climate Change - record World temp. rises in Feb.
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You cite a certain Pat Michaels. Let's take a look a this individual: Some quotes from Mr Michaels: Quote:
If we get Brexit wrong, we can reverse it. If we get Climate Change wrong, we're dead. |
Re: Climate Change - record World temp. rises in Feb.
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As for not being so gullible to believe 'everything scientists come up with' as opposed to what exactly? What people reckon based on no scientific method or evidence at all? This is how we get anti-vaccination groups and flat earthers. People entirely ignorant on a subject forming communities around their idiocy. The Theory of Relativity, Penicillin, Electricity, Antibiotics and splitting the atom. These discoveries came from scientists and not from the ever-constant group of people who sneered at them. When scientists have been wrong further science has disproved them since that's the entire point, to learn new things, so you rarely go wrong by following the scientific consensus. |
Re: Climate Change - record World temp. rises in Feb.
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Re: Climate Change - record World temp. rises in Feb.
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My position on global warming is that I have an open mind, but I'm not yet convinced that: 1. The temperature records showing an upward trend have not been manipulated rather than 'adjusted' for appropriate reasons. 2. Any rise in temperature is caused by carbon emissions. I have already told you why I think that. It would be better if you actually addressed the points that I'm making, rather than having a go. This is a discussion forum. |
Re: Climate Change - record World temp. rises in Feb.
There was a nice article in New Scientist about the uncertainties of climate change here - https://www.newscientist.com/article...e-really-know/
Unfortunately only available on subscription but here's the opening; Quote:
How much has the planet warmed already? The Paris accord has set a limit of no more than a 1.5°C rise but how much have temperatures risen already? This should be easy but it isn't. Global records started about 1850 but there are some uncertainties. For example, land temperatures tend to be measured at 2m above ground while sea temperatures are measured at sea level. Also, we cannot measure the temperature of the arctic as the annual sea ice comes and goes. The Met Office records and models leave the arctic out while NASAs estimate this. Also NASAs models estimate a pre-1850 rise of 0.2°C. Rolling this up, the Met Office says the planet has warmed by 0.9°C since 1850 while NASA says the planet has warmed by 1.2°C. It doesn't sound like much but is a big fraction when trying t limit warming by 1.5°C What is a safe limit for warming? No one really knows. There are suggested tipping points such as interruption of the north atlantic current but nobody knows for sure when anf if these events might happen. We can also mitigate some of the effects of climate change by changing building codes and not building by the sea or in low lying areas. When are we set to pass the 1.5°C limit? Current trends suggest we will cross the line in the 2020s but we may cross the line and drop a little with an El Nino event. Long term constant above 1.5°C is estimated to be the 2040s. There may be tipping point events that could rapidly change the rate of climate change such as the release of methane from permafrost melts or die back of the Amazon. Carbon capture technologies may reduce the ate of change. How much warming does CO2 cause? This is the toughest question when you try and model an entire planet. A small increase in temperature due to CO2 will increase water vapour in the atmosphere which is itself a greenhouse gas. If ice sheets melt, the reflective ice is replaced by dark ground which itself be warmed directly by the sun. However, burning fossil fuels can release climate cooling compounds like sulphur dioxide. The oceans may absorb more CO2 than we thought too. There are so many variables that the annual estimate of CO2 emissions limits needed to keep at or below the 1.5°C varies from 258 to 570 gigatonnes How high will the seas rise? During the last intergacial period where temperatures were on average 1°C higher than in 1850, the sea level rose 6-9 metres. However, there is a question on how long this will take if it happened again due to uncertainty in how long it would take for the ice in Greenland and the west Antarctic to melt. Estimates vary between 0.3 and 3 metres by 2100. In summary - modelling the climate of an entire planet is hard! |
Re: Climate Change - record World temp. rises in Feb.
Climate is now less a scientific hypothesis and more a belief system.
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Re: Climate Change - record World temp. rises in Feb.
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Re: Climate Change - record World temp. rises in Feb.
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Re: Climate Change - record World temp. rises in Feb.
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Oh wait, even they are now supporting the consensus. https://oilandgasclimateinitiative.com/ |
Re: Climate Change - record World temp. rises in Feb.
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I've got a good idea, why not drill for shale gas and release some more greenhouse gases... |
Re: Climate Change - record World temp. rises in Feb.
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Re: Climate Change - record World temp. rises in Feb.
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I don't fit the criteria 1 must hate Trump 2 must hate brexit 3 must be vegetarian 4 must use public transport 5 must hate everything that's not solar or wind powered |
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