Heat is trapped below the jet stream which can occur during periods of weak solar activity. Meanwhile above the jet stream, temperatures have been up to 20 degrees colder than average.
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Global Warming
- Thread starter Disco08
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Climate change is real.Heat is trapped below the jet stream which can occur during periods of weak solar activity. Meanwhile above the jet stream, temperatures have been up to 20 degrees colder than average.
Cimate
I don't know what the temperatures have been elsewhere, but the all time Canadian temperature record which sat at 45 degrees a week ago, has now been broken a few times and sits at 49.6 degrees. 49.6 degrees, and that's very far North, this is beyond the 50 degree mark North of the equator, we are about 38 degrees South in Melbourne to give you some idea.
Nah, nothing to see here
DS
Nah, nothing to see here
DS
Gee it's been hot before, who would have thought.
People got cancer before smoking was a thing too, you going to argue smoking doesn't cause cancer now?
When was the last time a weather record for a whole country was broken by 4 degrees I wonder?
Actually, the answer is never:
The weather records tumble, but mostly in one direction:
Here is the full article which the above quotes are from: https://yaleclimateconnections.org/...lds-most-extreme-heat-wave-in-modern-history/
Also, I think I read the other day that there have never been temperatures this high so far from the equator in the records we have. 49.6 in Canada - Canada, you know, the place where they have 4 seasons (explained to me by a Canadian once): pre-winter, winter, post-winter and construction season. 49.6 in Canada, that's 120F, not in NSW but Canada.
Are you seriously telling me warming isn't happening?
I'm sure they have had weather patterns like this in SW Canada before, but they never got temperatures like this before. More heatwaves and hotter heatwaves, these are part of the impact of climate change.
Maybe we will see temperatures this high in the future, who knows, but Melbourne has never been as hot as Canada has been this week.
DS
People got cancer before smoking was a thing too, you going to argue smoking doesn't cause cancer now?
When was the last time a weather record for a whole country was broken by 4 degrees I wonder?
Actually, the answer is never:
The weather records tumble, but mostly in one direction:
Here is the full article which the above quotes are from: https://yaleclimateconnections.org/...lds-most-extreme-heat-wave-in-modern-history/
Also, I think I read the other day that there have never been temperatures this high so far from the equator in the records we have. 49.6 in Canada - Canada, you know, the place where they have 4 seasons (explained to me by a Canadian once): pre-winter, winter, post-winter and construction season. 49.6 in Canada, that's 120F, not in NSW but Canada.
Are you seriously telling me warming isn't happening?
I'm sure they have had weather patterns like this in SW Canada before, but they never got temperatures like this before. More heatwaves and hotter heatwaves, these are part of the impact of climate change.
Maybe we will see temperatures this high in the future, who knows, but Melbourne has never been as hot as Canada has been this week.
DS
The Canada heatwave is due to a meridional (i.e. wavy) jet stream. Here's a timely article from earlier in the year.
Blaming a wiggly jet stream on climate change? Not so fast
About the ratio you'd expect under gradual warming.
Blaming a wiggly jet stream on climate change? Not so fast
About the ratio you'd expect under gradual warming.
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So, a wavy jetstream? Since we all know this has happened before, how come this time it leads to not just high temperatures, but to record breaking temperatures, not just record breaking but big increases in the record?
The jetstream is very complex and we don't understand it fully. There are a lot of influences.
But the reality is that we have seen records broken by large margins. For the record high temperature to increase by 4 degrees in one week is significant.
DS
The jetstream is very complex and we don't understand it fully. There are a lot of influences.
But the reality is that we have seen records broken by large margins. For the record high temperature to increase by 4 degrees in one week is significant.
DS
Bills on board nuclear
Yesterday, a bipartisan group of leaders in the U.S. Senate introduced the Nuclear Energy Leadership Act, which establishes an ambitious plan to accelerate the development of advanced nuclear reactor technologies. I can’t overstate how important this is.
Yesterday, a bipartisan group of leaders in the U.S. Senate introduced the Nuclear Energy Leadership Act, which establishes an ambitious plan to accelerate the development of advanced nuclear reactor technologies. I can’t overstate how important this is.
Hmm, 20 years of energy if we ramp up the use of uranium and 250,000 years of toxic waste.
No thanks.
DS
NASA says moon 'wobble' will cause record flooding in 2030s
Thanks to a "wobble" in the moon's orbit and rising sea levels, every coast in the United States will face rapidly increasing high tides that will start "a decade of dramatic increases in flood numbers" in the 2030s.
The conclusion, which was published in the Nature Climate Change journal by NASA Sea Level Change Science Team from the University of Hawaii, has to do with the moon's orbit, which takes 18.6 years to complete, according to NASA.
For half of that time period, Earth's regular daily tides are suppressed with high tides at a low average and low tides happening at a higher rate. In the other half of the cycle, the opposite occurs.
"High tides get higher, and low tides get lower. Global sea-level rise pushes high tides in only one direction – higher. So half of the 18.6-year lunar cycle counteracts the effect of sea-level rise on high tides, and the other half increases the effect," NASA explains.
The moon is in its tide-amplifying cycle right now, and there is no cause for concern of dramatic flooding given sea levels in the U.S. haven't risen much. However, when the moon returns to the tide-amplifying cycle, the seas will have had nearly a decade to rise.
"The higher seas, amplified by the lunar cycle, will cause a leap in flood numbers on almost all U.S. mainland coastlines, Hawaii, and Guam. Only far northern coastlines, including Alaska’s, will be spared for another decade or longer because these land areas are rising due to long-term geological processes," NASA said Wednesday.
How severe will the floods be? In 2019, the National Oceanic and Atmospheric Administration reported more than 600 floods.
By the mid-2030s, scientists expect three to four times that amount.
NASA Administrator Bill Nelson said the combination of the moon's gravitation pull, which causes tides in the first place, and climate change are the reasons behind the expected flooding.
"Low-lying areas near sea level are increasingly at risk and suffering due to the increased flooding, and it will only get worse,” Nelson said in the statement.
The study also determined some floods could happen in clusters, meaning they may last more than a month. Depending on the positioning of the moon, sun and Earth, cities may experience a flood in consecutive days or every other day.
While the amount of flooding won't be as much as a hurricane causes, having such frequent flooding can result in heavy economic damage.
"If it floods 10 or 15 times a month, a business can’t keep operating with its parking lot underwater. People lose their jobs because they can’t get to work. Seeping cesspools become a public health issue," said Phil Thompson, an assistant professor at the University of Hawaii and lead author of the study.
NASA hopes the release of its findings will help at-risk cities take measures to prevent too much damage.
Rising sea levels already have made living on the coast risky. Some experts say it may have played a role in the catastrophic collapse of a condo building in Surfside, Florida.
Thanks to a "wobble" in the moon's orbit and rising sea levels, every coast in the United States will face rapidly increasing high tides that will start "a decade of dramatic increases in flood numbers" in the 2030s.
The conclusion, which was published in the Nature Climate Change journal by NASA Sea Level Change Science Team from the University of Hawaii, has to do with the moon's orbit, which takes 18.6 years to complete, according to NASA.
For half of that time period, Earth's regular daily tides are suppressed with high tides at a low average and low tides happening at a higher rate. In the other half of the cycle, the opposite occurs.
"High tides get higher, and low tides get lower. Global sea-level rise pushes high tides in only one direction – higher. So half of the 18.6-year lunar cycle counteracts the effect of sea-level rise on high tides, and the other half increases the effect," NASA explains.
The moon is in its tide-amplifying cycle right now, and there is no cause for concern of dramatic flooding given sea levels in the U.S. haven't risen much. However, when the moon returns to the tide-amplifying cycle, the seas will have had nearly a decade to rise.
"The higher seas, amplified by the lunar cycle, will cause a leap in flood numbers on almost all U.S. mainland coastlines, Hawaii, and Guam. Only far northern coastlines, including Alaska’s, will be spared for another decade or longer because these land areas are rising due to long-term geological processes," NASA said Wednesday.
How severe will the floods be? In 2019, the National Oceanic and Atmospheric Administration reported more than 600 floods.
By the mid-2030s, scientists expect three to four times that amount.
NASA Administrator Bill Nelson said the combination of the moon's gravitation pull, which causes tides in the first place, and climate change are the reasons behind the expected flooding.
"Low-lying areas near sea level are increasingly at risk and suffering due to the increased flooding, and it will only get worse,” Nelson said in the statement.
The study also determined some floods could happen in clusters, meaning they may last more than a month. Depending on the positioning of the moon, sun and Earth, cities may experience a flood in consecutive days or every other day.
While the amount of flooding won't be as much as a hurricane causes, having such frequent flooding can result in heavy economic damage.
"If it floods 10 or 15 times a month, a business can’t keep operating with its parking lot underwater. People lose their jobs because they can’t get to work. Seeping cesspools become a public health issue," said Phil Thompson, an assistant professor at the University of Hawaii and lead author of the study.
NASA hopes the release of its findings will help at-risk cities take measures to prevent too much damage.
Rising sea levels already have made living on the coast risky. Some experts say it may have played a role in the catastrophic collapse of a condo building in Surfside, Florida.
Why are billionaires spending billions of dollars to send themselves into space when we've already been there? (Bezos & Branson)
They could be spending their money on looking after this planet. Are they looking to escape this earth..?
Either way I couldn't give a *smile* about their space projects.
They could be spending their money on looking after this planet. Are they looking to escape this earth..?
Either way I couldn't give a *smile* about their space projects.
It's man's destiny to travel to the stars (assuming we don't wipe ourselves out first). Easy to be cynical about these commercial ventures, but it's encouraging that private enterprise can make the journey safely. Watched the Branson flight and thought it was pretty amazing.
Could go to the rest of the solar system though. I understand the sentiment about Bezos, Branson and Musk but if it leads to more funding for space flight it could lead to good things. But then I've always been a science fiction fan.
