Comments for Climate change http://buildeco.wordpress.com talking eco with the pros Fri, 06 Nov 2009 11:31:08 +0000 http://wordpress.com/ hourly 1 Comment on Is there a link between Adelaide’s heatwave and global warming? by barb drechsler http://buildeco.wordpress.com/2009/02/13/is-there-a-link-between-adelaide%e2%80%99s-heatwave-and-global-warming/#comment-131 barb drechsler Fri, 06 Nov 2009 11:31:08 +0000 http://buildeco.wordpress.com/?p=204#comment-131 The dates across the bottom axis of the Adelaide’s record-smashing 15 day March 2008 heatwave graph all read 2007? The dates across the bottom axis of the Adelaide’s record-smashing 15 day March 2008 heatwave
graph all read 2007?

]]> Comment on TCASE 2: Energy primer by TCASE 3: The energy demand equation to 2050 « Climate change http://buildeco.wordpress.com/2009/10/02/tcase-2-energy-primer/#comment-114 TCASE 3: The energy demand equation to 2050 « Climate change Wed, 14 Oct 2009 01:01:11 +0000 http://buildeco.wordpress.com/?p=371#comment-114 [...] related posts: (automatically generated)Renewable energy cannot sustain an energy intensive societyTCASE 2: Energy primerIntegral Fast Reactors for the massesPower Saving Strategies to Reduce Your Power Bill in the Data [...] [...] related posts: (automatically generated)Renewable energy cannot sustain an energy intensive societyTCASE 2: Energy primerIntegral Fast Reactors for the massesPower Saving Strategies to Reduce Your Power Bill in the Data [...]

]]> Comment on Memo to Stephen Fielding: It’s not the sun by Liz http://buildeco.wordpress.com/2009/06/15/memo-to-stephen-fielding-it%e2%80%99s-not-the-sun/#comment-88 Liz Tue, 16 Jun 2009 10:53:30 +0000 http://buildeco.wordpress.com/?p=303#comment-88 Thankyou for the clarification. It was needed. Thankyou for the clarification. It was needed.

]]> Comment on Heatwave update and open letter to the PM by Brendan McGloin http://buildeco.wordpress.com/2009/02/13/heatwave-update-and-open-letter-to-the-pm/#comment-87 Brendan McGloin Tue, 09 Jun 2009 01:28:26 +0000 http://buildeco.wordpress.com/?p=209#comment-87 Hi, I'm currently writing a report on the Victorian Bushfires and I was wondering where you got the map from - the 1971-2000 map at the top. I've searched the BOM site but I can't find it. If you can let me know the address of it at the Bureau of Meterology then that'd be great. Thanks, Brendan Hi,

I’m currently writing a report on the Victorian Bushfires and I was wondering where you got the map from – the 1971-2000 map at the top. I’ve searched the BOM site but I can’t find it. If you can let me know the address of it at the Bureau of Meterology then that’d be great. Thanks, Brendan

]]> Comment on Al Gore’s blind spot on nuclear power by climatesight http://buildeco.wordpress.com/2009/06/01/al-gore%e2%80%99s-blind-spot-on-nuclear-power-2/#comment-86 climatesight Mon, 01 Jun 2009 01:36:18 +0000 http://buildeco.wordpress.com/?p=291#comment-86 That's really interesting. If we can find a long-term solution for nuclear waste, I'm all for it - nuclear reprocessing sounds possible. Like you said, it's really just the connection with "nuclear war" that makes "nuclear power" sound scary. Hydroelectricity is another zero-emission technology, I wonder why there isn't more of it in the world? Have you seen my blog? It has to do with how climate change relates to ideas such as credibility, responsible journalism, and risk management. I think you might enjoy it. You can probably just click on my name and it'll take you there. Thanks, Kate That’s really interesting. If we can find a long-term solution for nuclear waste, I’m all for it – nuclear reprocessing sounds possible. Like you said, it’s really just the connection with “nuclear war” that makes “nuclear power” sound scary. Hydroelectricity is another zero-emission technology, I wonder why there isn’t more of it in the world?

Have you seen my blog? It has to do with how climate change relates to ideas such as credibility, responsible journalism, and risk management. I think you might enjoy it.

You can probably just click on my name and it’ll take you there.

Thanks,
Kate

]]> Comment on Climbing mount improbable by Steve Bennett http://buildeco.wordpress.com/2009/04/15/climbing-mount-improbable/#comment-80 Steve Bennett Thu, 16 Apr 2009 11:49:49 +0000 http://buildeco.wordpress.com/?p=254#comment-80 I seem to recall reading (in Helen Caldicott...) that the world's supplies of uranium are a long way short of what would be required to make nuclear a viable option for mass replacement of other fossil fuel power stations. Any comment on that? Also, your "25 years in Germany" argument ignores the development in solar thermal technology, particularly over the last decade. 25 years ago, there were only small PV plants. Now there are 300MW solar thermal plants, and dozens of different designs being considered and implemented. Don't you think this will have an impact on the feasibility of renewable power generation? You reach the conclusion that since it didn't happen in Germany, it can't happen anywhere else - but you don't really explain what the limiting factor is. Do you think there is insufficient capital to invest in the huge number of solar plants required? A lack of space? A lack of political will? Unfavourable market conditions? I seem to recall reading (in Helen Caldicott…) that the world’s supplies of uranium are a long way short of what would be required to make nuclear a viable option for mass replacement of other fossil fuel power stations. Any comment on that?

Also, your “25 years in Germany” argument ignores the development in solar thermal technology, particularly over the last decade. 25 years ago, there were only small PV plants. Now there are 300MW solar thermal plants, and dozens of different designs being considered and implemented. Don’t you think this will have an impact on the feasibility of renewable power generation? You reach the conclusion that since it didn’t happen in Germany, it can’t happen anywhere else – but you don’t really explain what the limiting factor is. Do you think there is insufficient capital to invest in the huge number of solar plants required? A lack of space? A lack of political will? Unfavourable market conditions?

]]> Comment on Do Variations in the Solar Cycle Affect Our Climate System? by Mike Wilson http://buildeco.wordpress.com/2009/02/25/do-variations-in-the-solar-cycle-affect-our-climate-system/#comment-70 Mike Wilson Sun, 01 Mar 2009 16:17:06 +0000 http://buildeco.wordpress.com/?p=221#comment-70 Just passing by.Btw, your website have great content! _________________________________ Just passing by.Btw, your website have great content!

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]]> Comment on Do Variations in the Solar Cycle Affect Our Climate System? by erlhapp http://buildeco.wordpress.com/2009/02/25/do-variations-in-the-solar-cycle-affect-our-climate-system/#comment-67 erlhapp Wed, 25 Feb 2009 09:59:37 +0000 http://buildeco.wordpress.com/?p=221#comment-67 The observed response to solar forcing reflects the limitations of the model. Ozone in the polar stratosphere responds primarily to depletion from nitrogen compounds carried down from the mesosphere and the changing strength of the polar vortex that brings ozone into the troposphere where it is dissolved by water. The production of erosive nitrogen compounds is a response to Energetic Particle Precipitation Events that conform to the geomagnetic signal as dictated by the solar wind. Ozone in the tropical stratosphere is depleted by moisture arising from the tropical sea. When your model can simulate a sudden stratospheric warming in either pole that is conjunctional with strong cooling of the Equatorial stratosphere and simultaneous warming of the tropical ocean you will know that you have the elements within it to predict ENSO. You can then force it with changes in ultraviolet radiation and discover that recent climate change is entirely natural and just a sample of the sort of the more massive changes that we know have occurred over geologic time scales. Have you not observed that a La Nina frequently marks both solar minimum and solar maximum? A minus A = nothing. No response. The solar signal is written in ENSO typography. Compare the top of a heating cycle with the bottom of a cooling cycle. Want to know more: Visit http://climatechange1.wordpress.com There has been no increase in atmospheric temperature above 700hPa since 1948. After every ENSO heating episode temperature has returned to base. The atmosphere below 700hPa has warmed with the sea and the increased release of latent heat of condensation. The sea is now cooling. First rule of problem solving. Make sure the observations reflect reality. The observed response to solar forcing reflects the limitations of the model. Ozone in the polar stratosphere responds primarily to depletion from nitrogen compounds carried down from the mesosphere and the changing strength of the polar vortex that brings ozone into the troposphere where it is dissolved by water. The production of erosive nitrogen compounds is a response to Energetic Particle Precipitation Events that conform to the geomagnetic signal as dictated by the solar wind. Ozone in the tropical stratosphere is depleted by moisture arising from the tropical sea.

When your model can simulate a sudden stratospheric warming in either pole that is conjunctional with strong cooling of the Equatorial stratosphere and simultaneous warming of the tropical ocean you will know that you have the elements within it to predict ENSO. You can then force it with changes in ultraviolet radiation and discover that recent climate change is entirely natural and just a sample of the sort of the more massive changes that we know have occurred over geologic time scales.

Have you not observed that a La Nina frequently marks both solar minimum and solar maximum? A minus A = nothing. No response. The solar signal is written in ENSO typography. Compare the top of a heating cycle with the bottom of a cooling cycle.

Want to know more: Visit http://climatechange1.wordpress.com

There has been no increase in atmospheric temperature above 700hPa since 1948. After every ENSO heating episode temperature has returned to base. The atmosphere below 700hPa has warmed with the sea and the increased release of latent heat of condensation. The sea is now cooling.

First rule of problem solving. Make sure the observations reflect reality.

]]> Comment on Heatwave update and open letter to the PM by Damien http://buildeco.wordpress.com/2009/02/13/heatwave-update-and-open-letter-to-the-pm/#comment-62 Damien Sat, 14 Feb 2009 00:15:43 +0000 http://buildeco.wordpress.com/?p=209#comment-62 Yeah, the Firefighters' Union has also issued an open letter to Australian Prime Minister Kevin Rudd asking him to address climate change in the wake of the bushfires. Greenpeace have posted it on their blog: http://www.greenpeace.org.au/blog/energy/?p=425 Yeah, the Firefighters’ Union has also issued an open letter to Australian Prime Minister Kevin Rudd asking him to address climate change in the wake of the bushfires. Greenpeace have posted it on their blog:
http://www.greenpeace.org.au/blog/energy/?p=425

]]> Comment on Latest info from NASA’s Dr. Anthony Del Genio by erlhapp http://buildeco.wordpress.com/2009/01/13/latest-info-from-nasas-dr-anthony-del-genio/#comment-56 erlhapp Sat, 17 Jan 2009 02:18:32 +0000 http://buildeco.wordpress.com/?p=158#comment-56 Re: 'satellite-observed changes in absorbed sunlight and emitted heat in the tropics over the period 1985-2000, which appear to have caused a strengthening of the tropical atmospheric circulation, could in principle be either anthropogenic or natural in origin.' I agree that : "the observed 15-year trend in radiative imbalance of the tropics is probably a signature of natural rather than anthropogenic climate variations." Could I point you towards my own papers at:http://climatechange1.wordpress.com/2008/12/29/the-southern-oscillation-and-the-sun/ and : http://climatechange1.wordpress.com/2009/01/02/the-southern-oscillation-and-the-sun-2/ The massive increase in 200hPa temperature in the south east Pacific in 1976-8 and associated decline in surface pressure reduced the pressure differential between east and west setting up a constant El Nino bias in the Pacific atmosphere. A decline in upper atmosphere relative humidity at 300hPa in the tropics, with the exception of the period of vulcanism in the 90s, inhibited cloud formation. Inferentially, a decline in upper atmosphere cirrus occurred in the Indian and west Pacific. If one looks at surface atmospheric pressure in the western Pacific there was a gradual increase between 1948 and 2008. This reduced the pressure differential between east and west tending to shift the zone of maximum convection to the east, reducing the supply of moisture to the upper atmosphere in the west. That, with the loss of density in upper atmosphere cirrus explains the warming trend of sea surface temperature in the Indian Ocean and west Pacific. All these changes have at their root an increase in upper troposphere temperature that peaked in 1980 and has since gradually declined despite the trend to surface warming. Figure 8 in the second paper is revealing. Figure 6 shows an indicator of changes in the sea surface temperature from six to 12 months in advance. Many thanks for making yourself accessible. Re: ’satellite-observed changes in absorbed sunlight and emitted heat in the tropics over the period 1985-2000, which appear to have caused a strengthening of the tropical atmospheric circulation, could in principle be either anthropogenic or natural in origin.’

I agree that : “the observed 15-year trend in radiative imbalance of the tropics is probably a signature of natural rather than anthropogenic climate variations.”

Could I point you towards my own papers at:http://climatechange1.wordpress.com/2008/12/29/the-southern-oscillation-and-the-sun/
and : http://climatechange1.wordpress.com/2009/01/02/the-southern-oscillation-and-the-sun-2/

The massive increase in 200hPa temperature in the south east Pacific in 1976-8 and associated decline in surface pressure reduced the pressure differential between east and west setting up a constant El Nino bias in the Pacific atmosphere. A decline in upper atmosphere relative humidity at 300hPa in the tropics, with the exception of the period of vulcanism in the 90s, inhibited cloud formation. Inferentially, a decline in upper atmosphere cirrus occurred in the Indian and west Pacific.

If one looks at surface atmospheric pressure in the western Pacific there was a gradual increase between 1948 and 2008. This reduced the pressure differential between east and west tending to shift the zone of maximum convection to the east, reducing the supply of moisture to the upper atmosphere in the west. That, with the loss of density in upper atmosphere cirrus explains the warming trend of sea surface temperature in the Indian Ocean and west Pacific.

All these changes have at their root an increase in upper troposphere temperature that peaked in 1980 and has since gradually declined despite the trend to surface warming. Figure 8 in the second paper is revealing. Figure 6 shows an indicator of changes in the sea surface temperature from six to 12 months in advance.

Many thanks for making yourself accessible.

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