A recent global research initiative conducted by DNV GL has concluded that more than 80% of global energy participants believe that the electricity system can be 70% renewable by 2050.
In fact, the research finds that almost half of those involved in the research believe that a 70% renewable energy grid is possible in the next 15 years.
But, as the report concludes, such a transition to primarily-renewable energy “is contingent upon three dynamics”: convergence, rebalancing, and expansion.
The report, Beyond Integration: Three dynamics reshaping renewables and the grid, was published by DNV GL, the world’s largest resource of independent energy experts, and surveyed over 1,600 energy sector participants from more than 70 countries to address “key questions on how to best move forward the integration of renewables into the global electricity grids to ensure the future of electricity.”
One of the primary catalysts for the report was DNV GL’s concern that “Renewables are too often conceived as something to be ‘integrated’ into status quo arrangement. A smarter approach is needed.”
The report surveyed over 1,600 people from 71 countries, seeking “views on a scenario in which renewables account for 70% of power sector generation.” Additionally, “to help interpret these findings, [DNV GL] spoke to senior industry executives from E.ON, TEPCO, DONG Energy, and NYISO to understand what the energy transition means for them.”
Press link for more: Joshua Hill | reneweconomy.com.au
UNITED NATIONS (Thomson Reuters Foundation) – It’s time to go “from climate change to climate action” in efforts to save the planet, U.S. pop star Pharrell Williams said at the United Nations on Friday.
A mass extinction is an event in the fossil record, a fossilised disaster if you like, in which a massive, globally widespread and geologically rapid loss of species occurred from numerous environments. The “Big five” extinctions of the Phanerozoic (that time since the beginning of the Cambrian period, 541 million years ago) are those in which, in each instance, over half of known species disappeared from the fossil record.
How did they happen? The causes of such events, with a truly global reach, have been a well-known bone of contention within the Earth Sciences community over many decades. The popular media likes to portray such things as Hollywood-style disasters, in which everything gets wiped out in an instant. But in the realms of science, things have changed. The critically important development has been the refinement of radiometric dating, allowing us to age-constrain events down to much narrower windows of time. We can now, in some cases, talk about the start and end of an event in terms of tens of thousands (rather than millions) of years.
Such dating, coupled with the other time-tools of palaeomagnetism and the fossil record, have made it possible to develop a much clearer picture of how mass-extinctions occur. That picture is one of periods of global-scale pollution and environmental stress associated with large perturbations to the , lasting for thousands of years. Such upheavals are related to unusual episodes of volcanic activity with an intensity that is almost impossible to imagine. The geological calling-cards of such events are known as Large Igneous Provinces (LIPs). Bringing environmental and climatic changes at rates similar to the ones we have been creating, they have been repeat-offenders down the geological timeline. This introductory piece examines LIPs in the framework of more familiar volcanic activity: it is the only way to get a handle on their vastness.
Press link for more: skepticalscience.com
With more than 90% of all marine species and 75% of land species wiped out, the end Permian mass extinction was the worst crisis in the last 600 million years. The extinction was global in reach: almost all animals and plants in almost all environmental settings were affected. An idea of the severity can be visualised by considering that the time afterwards was marked by the beginning of a coal gap lasting for ten million years: coal-forming s – i.e. s – simply did not exist for that time.
The onset of the mass extinction coincided with the main part of the eruption of the late Permian Siberian Traps Large Igneous Province (LIP), 251.9 million years ago (). It contains what may be the largest known volume of terrestrial flood basalt in the world. Estimates vary but they start at volumes of at least 3 million cubic kilometres of igneous rocks that were erupted onto and intruded beneath the surface during the event. There are some much larger volume estimates that take into account “missing” erupted rocks since eroded away and the likely ratio of intruded to erupted rocks. Either way, as eruptive cycles go this was one of the biggest ever.
At the same time, there was a dramatic perturbation to the global , involving the injection of enough to the to triple the pre-existing levels and raise temperatures substantially. There were severe problems with other pollutants: acid rain, soil erosion, algal blooms and and anoxia all took a dramatic toll on life on land and in the seas.
An estimated massive (100,000 billion tonnes) release is thought to have been responsible for the dramatic carbon isotope-spike accompanying the extinction. Let me make this plain: such a spike cannot be generated without something of a drastic nature happening that involves a lot of carbon. The underground cooking of hydrocarbon-bearing evaporite and coal-bearing rock sequences by hot magma has been convincingly blamed for at least part of the release. So how does it compare to our emissions of ca. 32.3 billion tonnes a year? The late Permian carbon isotope-spike lasted some 2,100 to 18,800 years. Let’s round off the figures to make them easier to see in the mind’s eye: 2000 to 20,000 years. On the 2000 year scale, to produce a burp of this magnitude, 5,000 billion tonnes would need to be emitted per century: on the 20,000 year scale it would take 500 billion tonnes per century. That’s the range. Our emissions, if they carry on at the present (2014) rate? 3,230 billion tonnes per century. The conclusion is stark: we are outgassing at the same (or greater) rate as a Large Igneous Province whose overall effects killed most of life on Earth at the end of the Permian.
Late Permian volcanism and associated mass extinction took place, it is thought, over a maximum of several tens of thousands of years. Our self-inflicted environmental changes, assuming for one dreadful moment that we don’t get cracking and do something about them, are occurring over a few centuries. The kill-mechanisms may differ slightly from the end Permian events because of the differences outlined in the paragraphs above, but the most likely cause of any future large-scale extinction is nevertheless clear: prolonged environmental stress caused by widespread pollution. Extinction-level events occur when changes to the environment’s physical and chemical properties occur on too widespread and rapid a basis for many species to successfully adapt or migrate. If anyone can think of a better incentive to clean our act up than that, let’s hear it.
Press link for more: skepticalscience.com
World Bank Group President Jim Yong Kim gave a lecture at Georgetown University on March 18, 2015, about the development challenges created by climate change and actions that can be taken now to reduce the drivers of climate change and the impact.
Large parts of Queensland will continue to bake in unprecedented hot autumn conditions with the heatwave expected to last for days, according to the Bureau of Meteorology (BoM).
BoM said one outback western Queensland community yesterday recorded the hottest day this late in March in the state’s history and there were more extreme conditions predicted today.
Today’s forecast temperatures are expected to be 10 to 12 degrees above average, with the mercury to rise to the high 30s and into the 40s for most regions in Queensland.
South-east Ipswich is forecast to be 39 degrees and Toowoomba 35.
Larry Bernie is used to working through the heat, but the length of the current hot spell is unusual even for west Queensland.
Mr Bernie, who is helping to build a caravan parking lot in Longreach, said he and his colleagues do most of their work in the morning to avoid the heat.
“We try and keep our fluids up,” he said.
“We’d probably drink up to eight litres of water a day per person, and more when we get home.”
BoM forecaster Jess Carey said Bedourie yesterday saw 43.4 degrees at about 3pm.
“That is the latest, hottest temperature recorded in Queensland’s history, so I dare say that will be broken today with temperatures expected to get to 45 in Windorah and Birdsville,” Mr Carey said.
Press link for more : Chrissy Arthur | abc.net.au
Climate science predicts it will get hotter & dryer. This is just the beginning, drought & extreme heat will become the norm unless we dramatically reduce carbon pollution.
Mark Lynas says: “Solving climate change does not mean rolling back capitalism, suspending the free market or stopping economic growth” (Save us from the miserabilists in the battle over climate change, 12 March).
This statement would have made much sense 35 years ago. The urgency for rapid action had not been established. But all this has changed. Whether or not the new “crisis” reinforces an ideological position on the left (despite splits over nuclear power and GM crops) leading to “an outright denialist position” on the right is now so much water under the bridge.
Immense changes to the economic system must be made over the next few years, and the blame game gets us nowhere. If Klein’s belief that “corporate capitalism must be dismantled’” is wrong, it is up to the right to show how the new measures required can work under the present system. Governments should play a powerful role in facilitating compromises, where these can be made, and encouraging national debates on the basis of evidence rather than belief.
Bingley, West Yorkshire