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Saturday, 28 November 2015

Sustainability science: Exploiting the synergies published in Nature (NPG)



Sustainability science: Exploiting the synergies

David Griggs, professor of sustainable development at Monash University in Melbourne, Australia, and the University of Warwick, UK. reviews in Nature, Economist Jeffrey D. Sachs book

The Age of Sustainable Development

 Columbia Univ. Press: 2015.ISBN: 9780231173148
Here I shall quote a couple of  quotes which I can easily relate to from Griggs review:
"As a concept and practice, sustainable development emerged on the global scene in 1972, with the United Nations Conference on the Human Environment. Four decades on, in the year that the United Nations is due to set its Sustainable Development Goals (SDGs), the idea remains fuzzy around the edges. Jeffrey Sachs's The Age of Sustainable Development sharpens our understanding. It is, in my view, the best, most comprehensive and most articulate exposition of sustainable development ever written."
Economic and Social factors are underlined:

ECONOMIC:
"Sustainable development was once considered a problem of developing countries, solvable through, and almost as a by-product of, economic growth. But no country has pulled itself out of poverty without fossil fuels, whose emissions drive climate change and pollution, or nitrogen-based fertilizers, which promote algal blooms. And richer countries have demonstrated the problems of uncontrolled development of land and resources, a factor in biodiversity loss. Sustainable development is crucial for all countries, so the SDGs will apply to every nation."

SOCIAL
"How to achieve a sustainable future? Education, Sachs notes, is a lynchpin. When girls stay in school for longer, fertility rates drop. Households with fewer children invest more in education, health and nutrition. He quotes Scottish economist Adam Smith, who wrote in The Wealth of Nations (1776) that because society benefits when people are educated, the costs should be “defrayed by the general contribution of the whole society”. That we have not achieved this more than two centuries later is a baffling and damning indictment."  Blogger's note(Although the Scots are known for their legendary frugality many may take a book from the bicycle Dutch population. Granted Holland is a flat country.

SCIENTIFICALY MEASURED FACTS:
"Alongside the social challenges are climate change, ocean acidification and the current mass extinction of species — serious threats to humanity's capacity to thrive or even survive. For example, the concentration of carbon dioxide in the atmosphere is rising by more than 2 parts per million each year. Sachs concludes that no country is currently on a path to sustainable development."

HOLISTIC NATURE OF THESE PROBLEMS. 
"What becomes clear is that understanding the links between these issues is essential. Along with development aims such as sanitation and health care for a growing and ageing population, there are environmental challenges such as mitigating climate change."

The full review and related links to NPG are well worth reading_Great background reading for COP21 participants and all concerned citizens!


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Climate -COP21 Paris updates from Nature

"Momentum builds for a new treaty as world leaders prepare
to descend on Paris." 


"The road to a new global climate treaty
has been slow and plodding. But years
of delicate negotiations have given way
to cautious optimism as more than 190 nations
prepare for the marathon climate talks that
begin in Paris on 30 November."

writes JEFF TOLLEFSON 

REF:

Pledges raise hopes ahead of climate talks (pdf)

 418 | NATURE | VOL 527 | 26 NOVEMBER 2015



AND



First tranche of aid projects prompts concern over operations of fund for developing nations. (pdf)



writes  SANJAY KUMAR in the same volume;

REF: 26 NOVEMBER 2015 | VOL 527 | NATURE | 419.



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Friday, 6 November 2015

Renewables key in race against climate change clock by Phys.Org's M.Hood.

"Any plausible game plan for capping the rise of Earth's surface temperature depends on replacing fossil fuels with energy sources that generate little or no carbon pollution." writes Marlowe Hood in Phys Org November 1, 2015.


India's commitment on RHS-->>
so please read on...
Hood quoting reliable sources continues:
"That means renewables, especially solar and wind, both of which face fewer constraints to growth than more established : a river can be dammed only so many times, and nuclear remains expensive and controversial.
But humanity has dithered for so long in the fight against global warming, experts say, that the window of opportunity for decarbonising the global economy fast enough to avoid devastating climate change is barely ajar.
"The cost and difficulty of mitigating greenhouse gases increases every year, time is of the essence," Maria van der Hoeven, executive director of the International Energy Agency, said in a special IEA report on  and  released earlier this year.
The world's nations -– gathering in Paris in a month to ink the first-ever universal climate pact—have set a target of limiting  to two degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels.
Cross that red line, scientists say, and there will, almost literally, be hell to pay.
Science also tells us that, if we are to respect the 2 C limit, future greenhouse gas emissions cannot exceed a total "budget" of about 1,000 billion tonnes of carbon dioxide.
Carbon-cutting pledges from nearly 150 nations, unveiled on Friday, put us on track for a 3 C world.
This is a vast improvement on doing nothing. But even this unprecedented effort would use up three quarters of that carbon budget by 2030, leaving very little margin for closing the remaining gap. That's where the transition from  to renewables comes in
President Obama is quoted as follows "Energy production accounts for two-thirds of global , and thus transformation of this sector is crucial", he and other experts said.
OTHER IMPORTANT SOURCES QUOTED:
"According to the UN climate science body, the Intergovernmental Panel on Climate Change (IPCC), low-carbon energy must account for at least 80 percent of global electricity production by 2050 to have a better-than-even chance of staying under the 2 C threshold".
Read more at: http://phys.org/news/2015-11-renewables-key-climate-clock.html#jCp


Renewables key in race against climate change clock: "Renewables key in race against climate change clock"

ENCOURAGEMENT  from SUMMAT LEVEL: US President Obama see image

US President Barack Obama speaks with Commander Col Ronald Jolly as he tours a solar array at Hill Air Force Base in Utah

"Decarbonising energy is probably the quickest way to decarbonise the world," Adnan Amin, director general of the International Renewable Energies Agency.


The good news is that renewables are expanding rapidly and attracting investment.
Nearly half of all new installed power generation capacity in 2014 was in renewables—37 percent wind, a third solar and a quarter hydro, according to the IEA.
Investment in the sector totalled more than a quarter of a trillion dollars in the same year, an 8.5 percent increase over 2013.

"Capital markets have already begun to shift away from dirty technology to clean technology," Christina Figueres, executive secretary of the UN Framework Convention on Climate Change, told journalists Friday in releasing an analysis of national emissions-reduction pledges.

ENDNOTE:
But renewables only account for about 20 percent of global electricity generation, and three-quarters of that is hydro. Of total energy consumption -– overwhelmingly dominated by coal, oil and gas –- less than five percent comes from clean technology, excluding nuclear.
The transition towards a low-carbon economy is also hampered by fossil fuel subsidies totalling more than half-a-trillion dollars every year, four times the amount allocated for renewables.
Experts say, the Paris climate summit, which starts at the end of this month, is so crucial.
"COP21" -– the Paris climate summit -–STILL "needs to give a global and long-term signal to the world economy that is relevant to investors," said Martin Kaiser, a climate analyst from Greenpeace.






Read the full article in PhyOrg 






refs:
Read more on Phys Org

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