Slashdot Mirror
IPCC Climate Change Report Calls For Urgent Action To Phase Out Fossil Fuels (bbc.com)
The United Nation's Intergovernmental Panel on Climate Change (IPCC) has issued a report that says global temperatures are heading towards 3 degrees C, and that the original goal of keeping the rise under 1.5 degrees C will require "rapid, far-reaching and unprecedented changes in all aspects of society." While the window of opportunity is not yet closed, the prospect looks unlikely and hugely expensive. BBC reports: The critical 33-page Summary for Policymakers certainly bears the hallmarks of difficult negotiations between climate researchers determined to stick to what their studies have shown and political representatives more concerned with economies and living standards. Despite the inevitable compromises, there are some key messages that come through loud and and clear. "The first is that limiting warming to 1.5C brings a lot of benefits compared with limiting it to 2 degrees. It really reduces the impacts of climate change in very important ways," said Prof Jim Skea, who is a co-chair of the IPCC. "The second is the unprecedented nature of the changes that are required if we are to limit warming to 1.5C -- changes to energy systems, changes to the way we manage land, changes to the way we move around with transportation."
"Scientists might want to write in capital letters, 'ACT NOW IDIOTS,' but they need to say that with facts and numbers," said Kaisa Kosonen, from Greenpeace, who was an observer at the negotiations. "And they have." The researchers have used these facts and numbers to paint a picture of the world with a dangerous fever, caused by humans. We used to think if we could keep warming below 2 degrees this century then the changes we would experience would be manageable. Not any more. This new study says that going past 1.5C is dicing with the planet's liveability. And the 1.5C temperature "guard rail" could be exceeded in just 12 years in 2030. We can stay below it but it will require urgent, large-scale changes from governments and individuals, plus we will have to invest a massive pile of cash every year, around 2.5% of global GDP, for two decades. Even then, we will still need machines, trees and plants to capture carbon from the air that we can then store deep underground. Forever! In order to get to 1.5C, the report says the following will be necessary: Global emissions of CO2 need to decline by 45% from 2010 levels by 2030; Renewables are estimated to provide up to 85% of global electricity by 2050; Coal is expected to reduce to close to zero; Up to 7 million sq km of land will be needed for energy crops (a bit less than the size of Australia); and Global net zero emissions by 2050. As if this wasn't demanding enough, the report says that to limit warming to 1.5C, it will involve "annual average investment needs in the energy system of around $2.4 trillion" between 2016 and 2035.
If the planet reaches 2C of warming, coral reefs would be almost entirely wiped out and global sea-levels will rise around 10 centimeters more. "There are also significant impacts on ocean temperatures and acidity, and the ability to grow crops like rice, maize and wheat," reports The Guardian.
Further reading: Major Climate Report Describes a Strong Risk of Crisis as Early as 2040.
"Scientists might want to write in capital letters, 'ACT NOW IDIOTS,' but they need to say that with facts and numbers," said Kaisa Kosonen, from Greenpeace, who was an observer at the negotiations. "And they have." The researchers have used these facts and numbers to paint a picture of the world with a dangerous fever, caused by humans. We used to think if we could keep warming below 2 degrees this century then the changes we would experience would be manageable. Not any more. This new study says that going past 1.5C is dicing with the planet's liveability. And the 1.5C temperature "guard rail" could be exceeded in just 12 years in 2030. We can stay below it but it will require urgent, large-scale changes from governments and individuals, plus we will have to invest a massive pile of cash every year, around 2.5% of global GDP, for two decades. Even then, we will still need machines, trees and plants to capture carbon from the air that we can then store deep underground. Forever! In order to get to 1.5C, the report says the following will be necessary: Global emissions of CO2 need to decline by 45% from 2010 levels by 2030; Renewables are estimated to provide up to 85% of global electricity by 2050; Coal is expected to reduce to close to zero; Up to 7 million sq km of land will be needed for energy crops (a bit less than the size of Australia); and Global net zero emissions by 2050. As if this wasn't demanding enough, the report says that to limit warming to 1.5C, it will involve "annual average investment needs in the energy system of around $2.4 trillion" between 2016 and 2035.
If the planet reaches 2C of warming, coral reefs would be almost entirely wiped out and global sea-levels will rise around 10 centimeters more. "There are also significant impacts on ocean temperatures and acidity, and the ability to grow crops like rice, maize and wheat," reports The Guardian.
Further reading: Major Climate Report Describes a Strong Risk of Crisis as Early as 2040.
the world is run by corporations, not people. corporations are run by shareholders. a large part of the stock game is run by algorithms calculating and trading stocks for maximum efficiency. that algorithm does not care about the weather or the long term suitability of our planet.
Cue obligatory XKCD on climate, in another probably vain attempt to educate the dunderheads:
https://xkcd.com/1732/
Solar Reserve have some great low externality base load solar power stations. The heat is stored in molten salt and is available when the sun goes down. Base load solar plant like this can be scaled up, I have no affiliation with them however I find their technology interesting.
Coupled with domestic, industrial and commercial P.V there is enough energy in the sun to build power infrastructure. Combined with the terawatts of power available with wind and geothermal does anyone think the oil and coal industry want this technology to be developed and advanced?
I reason that any form of massive dynamic grid will need a lot of intelligence to make the power available where it is needed, which means interesting technological avenues to explore, a massive explosion of information technology and, fortunes to be made as the economy changes. If we can overcome the economic inertia.
None of the criticisms of these technologies ever ask what it would take to build such infrastructures and all of the technologies look like they scale well. We know we can't continue the way we are going because we will die. This is not just about the planet - Save the Humans, the planet will be just fine.
The only rational conclusion is that the world is being run by complete anti-social psychopaths who actually want such an outcome, otherwise it would be done already. The excuses are less and less believable every day.
My ism, it's full of beliefs.
That's a very US-centric view. In the EU, for example, we have considerably more control over corporations. See our environmental and privacy protections, for example. We also tend to have more limits on the funding of political parties and the amount they can spend, which really helps keep things from getting as bad as the US.
Having said that, even in the US the corporations don't have total control. Look at emission limits on cars, surely if big oil and car manufacturers were running things those wouldn't exist.
const int one = 65536; (Silvermoon, Texture.cs)
SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
Long haul flight is basically around 2 kg fuel per seat for every 100km. For a long haul like , say, 8000 km that is about 160 Kg fuel time 2 for return that's 320 Kg fuel or 640 Kg per two persons. Compare that for average fuel consumption car is 9 kg per 100 Km. Let us say 10. So the distance corresponding is 6400 km of car, or about 8000 miles. Somebody doing 8 mils of commuting every day will have done that in 4 month. That is also by the way the same consumption as somebody doing their holiday in car, so barring you going only 20 miles away for holiday, you'll consume as much. And in the grand scheme of thing, that will probably be nothing compared to the carbon footprint reduction for most company. So you can take your millennial joke , and shove it (I am much older than a millennial but I can't appreciate people which use that as a cheap shot).
C. Sagan : A demon haunted world:
http://www.amazon.com/gp/product/0345409469/
visit randi.org
now simply background noise
Their doom and gloom warnings have always been about the distant future, and they continue to be. This isn't about people proclaiming the end of the world is near, and then the date passes with nothing happening. The claims they have made about the near-time have actually come to pass - actual observed global warming is well within the predictions made by their models. There is no reason to doubt that they will get less accurate with time and refinement.
having been adjusted and interpolated time and again
Of course it's been adjusted and interpolated - how else to you normalize inputs from more than one source? They don't have perfect data; it's all observational science. They don't have lots of earths to experiment on, or the ability to jump back in time with proper instrumentation.
each one passes without the world ending
Provide even a single example of this.
W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.