Australian Politics Forum - Evidence for global warming.

Bobby. Moderator Offline Australian Politics Posts: 103389 Melbourne Gender:	Re: Evidence for global warming. Reply #960 - Jul 17^th, 2023 at 4:10pm lee wrote on Jul 17^th, 2023 at 3:55pm: Bobby. wrote on Jul 17^th, 2023 at 3:40pm: Ceverny, the World Meteorological Organization’s records coordinator, said in an email. “Long-term: Global warming is causing higher and more frequent temperature extremes. But still can't break the 1913 record. I noticed that.
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thegreatdivide Gold Member Offline Australian Politics<br /> Posts: 12590 Gender:	Re: Evidence for global warming. Reply #961 - Jul 17^th, 2023 at 4:49pm How about the simultaneous record flooding, and record heat in the entire northern hemispere, and record high ocean temps, all at the same time? Don't shoot me, I'm just reporting what I heard on the radio today.
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Bobby.

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Re: Evidence for global warming.
Reply #962 - Jul 17^th, 2023 at 5:22pm

repeat:

https://www.pbs.org/newshour/nation/californias-death-valley-sizzles-near-record...

California’s Death Valley sizzles near record temperatures
as brutal heat wave continues

Nation Jul 16, 2023 5:32 PM EDT

Long the hottest place on Earth, Death Valley put a sizzling exclamation point Sunday on a record warm summer that is baking nearly the entire globe by flirting with some of the hottest temperatures ever recorded, meteorologists said.

Temperatures in Death Valley, which runs along part of central California’s border with Nevada, were forecast to reach 128 degrees (53.33 degrees Celsius) on Sunday at the aptly named Furnace Creek, the National Weather Service said.

The hottest temperature ever recorded was 134 degrees (56.67 degrees Celsius) in July 1913 at Furnace Creek, said Randy Ceverny of the World Meteorological Organization, the body recognized as keeper of world records. Temperatures at or above 130 degrees (54.44 degrees Celsius) have only been recorded on Earth a handful of times, mostly in Death Valley.

“With global warming, such temperatures are becoming more and more likely to occur,” Ceverny, the World Meteorological Organization’s records coordinator, said in an email. “Long-term: Global warming is causing higher and more frequent temperature extremes.

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lee

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Re: Evidence for global warming.
Reply #963 - Jul 17^th, 2023 at 7:04pm

Linus wrote on Jul 14^th, 2023 at 7:46pm:

The fact is that CO2, by all scientific measures, represents around 75% of the positive radiative forcing.

I have been looking at where this came from as Linus has gone missing. I found this -

"A companion study led by GISS co-author Gavin Schmidt that has been accepted for publication in the Journal of Geophysical Research shows that carbon dioxide accounts for about 20 percent of the greenhouse effect, water vapor and clouds together account for 75 percent, and minor gases and aerosols make up the remaining five percent. However, it is the 25 percent non-condensing greenhouse gas component, which includes carbon dioxide, that is the key factor in sustaining Earth’s greenhouse effect. By this accounting, carbon dioxide is responsible for 80 percent of the radiative forcing that sustains the Earth’s greenhouse effect.

The climate forcing experiment described in Science was simple in design and concept -- all of the non-condensing greenhouse gases and aerosols were zeroed out, and the global climate model was run forward in time to see what would happen to the greenhouse effect. "

https://www.nasa.gov/topics/earth/features/co2-temperature.html

So the results of a climate model. Models are not science. Is Linus a JM sock? Wink

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Super Nova Gold Member Offline Posts: 3065 Everywhere Gender:	Re: Evidence for global warming. Reply #964 - Jul 17^th, 2023 at 7:42pm Question: 1. Are we all on board that Global Warming is a reality? 2. Are we all on board that Global Warming is significantly cause by man's activities? Deniers, please explain why you are not on board with this.
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Bobby.

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Re: Evidence for global warming.
Reply #965 - Jul 17^th, 2023 at 7:49pm

Super Nova wrote on Jul 17^th, 2023 at 7:42pm:

Question:
1. Are we all on board that Global Warming is a reality?
2. Are we all on board that Global Warming is significantly cause by man's activities?

Deniers, please explain why you are not on board with this.

Well - I can't see we can put billions of tons of CO2 into the atmosphere
and not cause something to change.

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Super Nova

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Re: Evidence for global warming.
Reply #966 - Jul 17^th, 2023 at 7:53pm

Bobby. wrote on Jul 17^th, 2023 at 7:49pm:

Super Nova wrote on Jul 17^th, 2023 at 7:42pm:

Question:
1. Are we all on board that Global Warming is a reality?
2. Are we all on board that Global Warming is significantly cause by man's activities?

Deniers, please explain why you are not on board with this.

Well - I can't see we can put billions of tons of CO2 into the atmosphere
and not cause something to change.

Yes.

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Bobby.

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Re: Evidence for global warming.
Reply #967 - Jul 17^th, 2023 at 8:02pm

Super Nova wrote on Jul 17^th, 2023 at 7:53pm:

Bobby. wrote on Jul 17^th, 2023 at 7:49pm:

Super Nova wrote on Jul 17^th, 2023 at 7:42pm:

Question:
1. Are we all on board that Global Warming is a reality?
2. Are we all on board that Global Warming is significantly cause by man's activities?

Deniers, please explain why you are not on board with this.

Well - I can't see we can put billions of tons of CO2 into the atmosphere
and not cause something to change.

Yes.

That's why I'm disappointed that molten salt Thorium reactors
have not taken off yet:

https://www.ozpolitic.com/forum/YaBB.pl?num=1519823686/0#0

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thegreatdivide

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Re: Evidence for global warming.
Reply #968 - Jul 17^th, 2023 at 9:43pm

Bobby. wrote on Jul 17^th, 2023 at 8:02pm:

Super Nova wrote on Jul 17^th, 2023 at 7:53pm:

Bobby. wrote on Jul 17^th, 2023 at 7:49pm:

Super Nova wrote on Jul 17^th, 2023 at 7:42pm:

Question:
1. Are we all on board that Global Warming is a reality?
2. Are we all on board that Global Warming is significantly cause by man's activities?

Deniers, please explain why you are not on board with this.

Well - I can't see we can put billions of tons of CO2 into the atmosphere
and not cause something to change.

Yes.

That's why I'm disappointed that molten salt Thorium reactors
have not taken off yet:

https://www.ozpolitic.com/forum/YaBB.pl?num=1519823686/0#0

I read recently that China has just commissioned its first (and the world's first?) thorium or molten-salt portable nuclear reactor, I didn't note the details.

If so, we are on the way.

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Bobby.

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Re: Evidence for global warming.
Reply #969 - Jul 18^th, 2023 at 11:02am

thegreatdivide wrote on Jul 17^th, 2023 at 9:43pm:

Bobby. wrote on Jul 17^th, 2023 at 8:02pm:

Super Nova wrote on Jul 17^th, 2023 at 7:53pm:

Bobby. wrote on Jul 17^th, 2023 at 7:49pm:

Super Nova wrote on Jul 17^th, 2023 at 7:42pm:

Question:
1. Are we all on board that Global Warming is a reality?
2. Are we all on board that Global Warming is significantly cause by man's activities?

Deniers, please explain why you are not on board with this.

Well - I can't see we can put billions of tons of CO2 into the atmosphere
and not cause something to change.

Yes.

That's why I'm disappointed that molten salt Thorium reactors
have not taken off yet:

https://www.ozpolitic.com/forum/YaBB.pl?num=1519823686/0#0

I read recently that China has just commissioned its first (and the world's first?) thorium or molten-salt portable nuclear reactor, I didn't note the details.

If so, we are on the way.

I hope so -
there are some major technical problems to overcome -
hopefully the Chinese have worked out the answers.

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Bobby. Moderator Offline Australian Politics Posts: 103389 Melbourne Gender:	Re: Evidence for global warming. Reply #970 - Jul 18^th, 2023 at 8:26pm https://www.bbc.com/news/live/world-66207430
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Bobby.

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Re: Evidence for global warming.
Reply #971 - Jul 18^th, 2023 at 9:17pm

https://edition.cnn.com/world/live-news/global-heat-wave-weather-temperatures-07...

Live Updates

Intense heat waves, scorching temperatures and extreme weather in Europe, US and Asia

By Helen Regan, Adam Renton, Christian Edwards and Lauren Said-Moorhouse, CNN
Updated 7:06 a.m. ET, July 18, 2023

What we're covering

Blisteringly high temperatures are being reported across the world, breaking records on multiple continents — the latest in a trend caused by the climate crisis. The first week of July was the hottest week on record, data shows.
In the United States, millions of people in the Southwest and South face dangerously high temperatures. Some places, like Texas and Arizona, have endured a weekslong heat streak.
The heat has primed the land for fires in places like Spain and Greece. Smoke from wildfires in Canada is triggering unhealthy air warnings across the northern tier of the US.
Meanwhile, torrential rains have inundated parts of Japan, China, South Korea and India, upending the lives of millions and causing flash floods, landslides and power cuts.

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lee

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Re: Evidence for global warming.
Reply #972 - Jul 23^rd, 2023 at 12:37pm

More on Star from NOAA-

Quote:

A new version of the NOAA Center for Satellite Applications and Research (STAR) mid-tropospheric layer temperature time series was developed

Instrument recalibration has removed spurious warming drifts in observations from NOAA-11 to NOAA-14 and spurious cooling drifts in NOAA-15

The new record yields a trend of 0.14 K/decade during 1979–2021 with an even greater rate of warming after the year 2002 (0.22 K/decade)

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022JD037472

It appears that RemSS may have finally got it right because they were always over 0.23C/decade. Wink

As to the latest RemSS recent -

That looks really scary. Wink

A comparison of UAH vs RemSS from RemSS -

Edit: apparently CO2 can lie dormant. Wink

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« Last Edit: Jul 23^rd, 2023 at 12:52pm by lee »

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lee

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Re: Evidence for global warming.
Reply #973 - Jul 23^rd, 2023 at 1:49pm

All is grist to the mill.

CO2 has been higher in the past - but didn't kill the coral because of "acidification". It was also warmer in the past and that didn't kill coral either.

According to NOAA we have passed 1.5C.

https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/global/time-seri...

According to Berkeley Earth Europe has passed 2.0C

or here

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Bobby.

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Re: Evidence for global warming.
Reply #974 - Jul 24^th, 2023 at 1:01pm

https://edition.cnn.com/2023/07/23/economy/extreme-heat-economic-impact/index.ht...

‘It comes up on you fast:’ Scorching heat is crushing American businesses

By Alicia Wallace, CNN
Updated 9:39 PM EDT, Sun July 23, 2023

In the dead of night, the temperature remains in the triple digits.

As Phoenix and a large chunk of the United States bake under a record heat wave, the massive swath of extreme heat is not only taking a toll on millions of Americans, it’s also driving up costs for businesses and putting pressure on the economy.

$100 billion productivity drain

While the true economic impact has yet to be tabulated for this weather event — the nature of excessive heat, its varying effects and sizable reach make that a tall order — recent studies have shown that extreme heat could cost the United States $100 billion annually from the productivity loss alone. If left unchecked, it could sap away one-sixth of global economic activity by the year 2100.

“The recent heat waves and scorching summer temperatures demonstrate the economic cost of heat stress,” Chris Lafakis, Moody’s Analytics’ director of economic research, wrote in an emailed response to a CNN query. “Heat waves can cause mortality and produce disruptions in business continuity. Heat waves can also stress regional power grids, driving up the cost and availability of space cooling.”

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