EE_Bota
Veteran Member
Hope it works well for you Rob. Give it heck!
Global Warming?
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Hope it works well for you Rob. Give it heck!
houstonscott
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The main thing to remember is American's will use what works, and is affordable. So at this point it's natural gas, and coal for electric power needs. For portable power it is gasoline and diesel. The number of people whom think burning these fuels is a problem that mandates a switch to solar and wind at a cost of as much as 10 or even 50 times the current cost is a non starter and their numbers are plummeting. So for now solar and wind remain cottage industries for the very narrow niche they fill. It is they whom have to prove their technology works, for now people have rejected it soundly.
HS
HS
Loren49
Platinum Member
Kinda short on facts but good unsubstatiated talking points. Many of these points have been debunked in recent posts...i.e. full costs, rejected soundly???
Loren
Short Game
Veteran Member
I bet most hybrid owners who are also South Park fans got a real kick out of the Smug episode too. Funny stuff.
CowboyRon
Platinum Member
Short Game said:
I couldn't stop laughing, it was almost as good as manbearpig
Dustier
Bronze Member
Or, as Canadian co-author Arne Mooers, at Simon Fraser Univeristy in British Columbia, puts it: "Once the shift occurs, they'll be no going back."
A shift or tipping point is "speculation at this point," Mooers told Postmedia News.
"But it's one of those things where you say: 'Hey, maybe we better find out,' because if it's true, it's pretty serious."
The Nature paper grew out of a 2010 conference that raised plenty of questions about whether humans could trigger a state shift, but few answers on how to recognize and avoid it.
The 22 biologists, ecologists, theoreticians, geologists and paleontologists who produced Thursday's report reviewed past stateshifts the latest being end of the most recent ice age and the remarkable changes humans are driving on the planet.
The climate is warming so fast that the "mean global temperature by 2070 (or possibly a few decades earlier) will be higher than it has been since the human species evolved," they say.
And to support the current population of seven billion people, about 43 per cent of Earth's land surface has been converted to agricultural or urban use. The population is expected to hit nine billion by 2045 and they say current trends suggest that half Earth's land surface will be altered by humans by 2025.
That's "disturbingly close" to a potential global tipping point, Barnosky says in a release issued with the report. The study says tipping points tend to occur when 50 to 90 per cent of smaller ecosystems have been disrupted.
Read more: Earth reaching an environmental 'state shift': Report
A shift or tipping point is "speculation at this point," Mooers told Postmedia News.
"But it's one of those things where you say: 'Hey, maybe we better find out,' because if it's true, it's pretty serious."
The Nature paper grew out of a 2010 conference that raised plenty of questions about whether humans could trigger a state shift, but few answers on how to recognize and avoid it.
The 22 biologists, ecologists, theoreticians, geologists and paleontologists who produced Thursday's report reviewed past stateshifts the latest being end of the most recent ice age and the remarkable changes humans are driving on the planet.
The climate is warming so fast that the "mean global temperature by 2070 (or possibly a few decades earlier) will be higher than it has been since the human species evolved," they say.
And to support the current population of seven billion people, about 43 per cent of Earth's land surface has been converted to agricultural or urban use. The population is expected to hit nine billion by 2045 and they say current trends suggest that half Earth's land surface will be altered by humans by 2025.
That's "disturbingly close" to a potential global tipping point, Barnosky says in a release issued with the report. The study says tipping points tend to occur when 50 to 90 per cent of smaller ecosystems have been disrupted.
Read more: Earth reaching an environmental 'state shift': Report
houstonscott
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More of the same, did you read the paper. Not ONE fact links human activity to climate change. Here lays the problem, there is no link. And on top of all that there is no link between climate change and CO2 levels.
HS
HS
Loren49
Platinum Member
Science:
The Big Picture
The Earth is Warming
We know the planet is warming from surface temperature stations and satellites measuring the temperature of the Earth's surface and lower atmosphere. We also have various tools which have measured the warming of the Earth's oceans. Satellites have measured an energy imbalance at the top of the Earth's atmosphere. Glaciers, sea ice, and ice sheets are all receding. Sea levels are rising. Spring is arriving sooner each year. There's simply no doubt - the planet is warming
The Big Picture
Posted on 24 September 2010 by dana1981
Oftentimes we get bogged down discussing one of the many pieces of evidence behind man-made global warming, and in the process we can't see the forest for the trees. It's important to every so often take a step back and see how all of those trees comprise the forest as a whole. Skeptical Science provides an invaluable resource for examining each individual piece of climate evidence, so let's make use of these individual pieces to see how they form the big picture.
The Earth is Warming
We know the planet is warming from surface temperature stations and satellites measuring the temperature of the Earth's surface and lower atmosphere. We also have various tools which have measured the warming of the Earth's oceans. Satellites have measured an energy imbalance at the top of the Earth's atmosphere. Glaciers, sea ice, and ice sheets are all receding. Sea levels are rising. Spring is arriving sooner each year. There's simply no doubt - the planet is warming (Figure 1).
Figure 1: Indicators of a warming world
Global Warming Continues
And yes, the warming is continuing. The 2000s were hotter than the 1990s, which were hotter than the 1980s, which were hotter than the 1970s. 2010 tied for the hottest year on record. The 12-month running average global temperature broke the record three times in 2010, according to NASA Goddard Institute for Space Studies (GISS) data. Sea levels are still rising, ice is still receding, spring is still coming earlier, there's still a planetary energy imbalance, etc. etc.
Contrary to what some would like us to believe, the planet has not magically stopped warming. Those who argue otherwise are confusing short-term noise with long-term global warming (Figure 2).
Humans are Increasing Atmospheric Greenhouse Gases
The amount of greenhouse gases in the atmosphere - particularly carbon dioxide (CO2) - has been rising steadily over the past 150 years. There are a number of lines of evidence which clearly demonstrate that this increase is due to human activities, primarily burning fossil fuels.
The most direct of evidence involves simple accounting. Humans are currently emitting approximately 30 billion tons of CO2 per year, and the amount in the atmosphere is increasing by about 15 billion tons per year. Our emissions have to go somewhere - half goes into the atmosphere, while the other half is absorbed by the oceans (which is causing another major problem - ocean acidification).
Human Greenhouse Gases are Causing Global Warming
There is overwhelming evidence that humans are the dominant cause of the recent global warming, mainly due to our greenhouse gas emissions. Based on fundamental physics and math, we can quantify the amount of warming human activity is causing, and verify that we're responsible for essentially all of the global warming over the past 3 decades. The aforementioned Foster and Rahmstorf (2011) found a 0.16ｰC per decade warming trend since 1979 after filtering out the short-term noise.
In fact we expect human greenhouse gas emissions to cause more warming than we've thus far seen, due to the thermal inertia of the oceans (the time it takes to heat them). Human aerosol emissions are also offsetting a significant amount of the warming by causing global dimming. Huber and Knutti (2011) found that human greenhouse gas emissions have caused 66% more global warming than has been observed since the 1950s, because the cooling effect of human aerosol emissions have offset about 44% of that warming. They found that overall, human effects are responsible for approximately 100% of the observed global warming over the past 60 years (Figure 5).
Loren
The Big Picture
The Earth is Warming
We know the planet is warming from surface temperature stations and satellites measuring the temperature of the Earth's surface and lower atmosphere. We also have various tools which have measured the warming of the Earth's oceans. Satellites have measured an energy imbalance at the top of the Earth's atmosphere. Glaciers, sea ice, and ice sheets are all receding. Sea levels are rising. Spring is arriving sooner each year. There's simply no doubt - the planet is warming
The Big Picture
Posted on 24 September 2010 by dana1981
Oftentimes we get bogged down discussing one of the many pieces of evidence behind man-made global warming, and in the process we can't see the forest for the trees. It's important to every so often take a step back and see how all of those trees comprise the forest as a whole. Skeptical Science provides an invaluable resource for examining each individual piece of climate evidence, so let's make use of these individual pieces to see how they form the big picture.
The Earth is Warming
We know the planet is warming from surface temperature stations and satellites measuring the temperature of the Earth's surface and lower atmosphere. We also have various tools which have measured the warming of the Earth's oceans. Satellites have measured an energy imbalance at the top of the Earth's atmosphere. Glaciers, sea ice, and ice sheets are all receding. Sea levels are rising. Spring is arriving sooner each year. There's simply no doubt - the planet is warming (Figure 1).
Figure 1: Indicators of a warming world
Global Warming Continues
And yes, the warming is continuing. The 2000s were hotter than the 1990s, which were hotter than the 1980s, which were hotter than the 1970s. 2010 tied for the hottest year on record. The 12-month running average global temperature broke the record three times in 2010, according to NASA Goddard Institute for Space Studies (GISS) data. Sea levels are still rising, ice is still receding, spring is still coming earlier, there's still a planetary energy imbalance, etc. etc.
Contrary to what some would like us to believe, the planet has not magically stopped warming. Those who argue otherwise are confusing short-term noise with long-term global warming (Figure 2).
Humans are Increasing Atmospheric Greenhouse Gases
The amount of greenhouse gases in the atmosphere - particularly carbon dioxide (CO2) - has been rising steadily over the past 150 years. There are a number of lines of evidence which clearly demonstrate that this increase is due to human activities, primarily burning fossil fuels.
The most direct of evidence involves simple accounting. Humans are currently emitting approximately 30 billion tons of CO2 per year, and the amount in the atmosphere is increasing by about 15 billion tons per year. Our emissions have to go somewhere - half goes into the atmosphere, while the other half is absorbed by the oceans (which is causing another major problem - ocean acidification).
Human Greenhouse Gases are Causing Global Warming
There is overwhelming evidence that humans are the dominant cause of the recent global warming, mainly due to our greenhouse gas emissions. Based on fundamental physics and math, we can quantify the amount of warming human activity is causing, and verify that we're responsible for essentially all of the global warming over the past 3 decades. The aforementioned Foster and Rahmstorf (2011) found a 0.16ｰC per decade warming trend since 1979 after filtering out the short-term noise.
In fact we expect human greenhouse gas emissions to cause more warming than we've thus far seen, due to the thermal inertia of the oceans (the time it takes to heat them). Human aerosol emissions are also offsetting a significant amount of the warming by causing global dimming. Huber and Knutti (2011) found that human greenhouse gas emissions have caused 66% more global warming than has been observed since the 1950s, because the cooling effect of human aerosol emissions have offset about 44% of that warming. They found that overall, human effects are responsible for approximately 100% of the observed global warming over the past 60 years (Figure 5).
Loren
Dustier
Bronze Member
Yup! It's just more of the same. Melting glaciers? No problemo. It's just Nature doing its thing.
No! No! It's just like cigarettes - there is no direct link that smoking leads to respiratory diseases like lung cancer et al.
Or maybe it's like fracking and flammable water. No connection at all.
Better yet, escaping lethal gases and nuclear related isotopes have no negative impact on living things.
And genetically modified foods have ever been show to be deleterious to human health.
The ultimate - "Radiation is good for you." - Ann Coulter
http://climate.nasa.gov/evidence/
http://s18-us2.startpage.com/do/sea...&pid=530da10cd02a7fe6cd1f6203b90fa69a&nossl=1
No! No! It's just like cigarettes - there is no direct link that smoking leads to respiratory diseases like lung cancer et al.
Or maybe it's like fracking and flammable water. No connection at all.
Better yet, escaping lethal gases and nuclear related isotopes have no negative impact on living things.
And genetically modified foods have ever been show to be deleterious to human health.
The ultimate - "Radiation is good for you." - Ann Coulter
http://climate.nasa.gov/evidence/
http://s18-us2.startpage.com/do/sea...&pid=530da10cd02a7fe6cd1f6203b90fa69a&nossl=1
rsewill
Veteran Member
Dustier said:
Sounds like something Coulter would say. He needs to stay out of the sun.
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