21/04/2016

Signing The Paris Climate Agreement Is Easy – What Comes Next For Australia Will Be Hard

The Conversation - 

The Paris climate agreement will be open for signing at the UN’s New York headquarters for the next year, starting tomorrow. Yero/Wikimedia Commons, CC BY-SA

Tomorrow, world leaders and diplomats will converge on the United Nations' New York headquarters to sign the Paris Agreement on climate change. It will be the largest UN signing event in history, with representatives from at least 162 countries, including more than 60 heads of state, on hand to sign the historic deal that was struck last December.
Signing is just the first step. Nations then have to follow through by ratifying the agreement. Only when 55 countries, representing at least 55% of world greenhouse emissions, have signed and ratified the agreement will it become binding under international law.
Such is the eagerness among the international community to sign and ratify the Paris Agreement that it is quite possible it could enter into force this year, rather than in 2020 as was initially expected.
As 2016 continues to smash global heat records, there is a renewed sense of urgency among almost all governments. They now acknowledge that greenhouse emissions must be reduced rapidly if there is any hope of meeting the Paris Agreement’s goal of keeping global warming well below 2℃.
Australia’s government has confirmed that it will be represented at the ceremony, although it will be Environment Minister Greg Hunt rather than Prime Minister Malcolm Turnbull who will join world leaders in inking the deal.

Australia’s track record
Australia has signed previous climate treaties, but it has a mixed record in following through with its commitments.
The Keating government supported the Rio Earth Summit in 1992. In the same year, it signed and ratified the UN Framework Convention on Climate Change. That agreement gave rise to the UN climate regime of which the Paris Agreement is now the most important component.
In 1997, the Howard government negotiated and signed the Kyoto Protocol, in the process winning major concessions that allowed Australia to increase its emissions rather than reduce them.
Despite this sweetener, John Howard refused to take the logical step and render Kyoto legally binding by ratifying it. The Kyoto Protocol only entered into force in 2005, after Russia ratified the treaty. It was not until 2007, following the election of the Rudd government, that Australia finally ratified Kyoto.
In 2011 the Gillard government introduced an emissions trading scheme (with an initial fixed carbon price) to ensure Australia could meet its Kyoto commitments (and deliver deeper cuts over time, as by itself Kyoto has achieved minimal emissions reductions). But the Abbott government repealed this measure in July 2014 and replaced it with the Direct Action policy. This policy remains a work in progress and has not locked in the necessary emissions cuts to keep Australia’s goals within reach.
Australia’s actions since 2013 are clearly against the international tide. According to the World Bank, 40 nations and 23 subnational jurisdictions have adopted or are planning to adopt carbon prices.
The Turnbull government’s active and supportive participation in last year’s Paris climate negotiations signalled that, on the international plane at least, some bipartisanship has returned to Australia’s climate policy. The same cannot be said of the domestic front, where the major parties are still at loggerheads on the climate challenge.
Opposition Leader Bill Shorten has pledged that a Labor government would reintroduce an emissions trading scheme if elected this year. But the Coalition government remains implacably opposed to any price on carbon. This is despite the fact that Turnbull himself was a strong supporter of carbon pricing and previously staked (and lost) his leadership of the Liberal Party on emissions trading in 2009. Even Howard proposed a comprehensive emissions trading policy in the dying days of his government in 2007.

Tricky times
This is a major problem because without agreement across political lines, Australia could be signing a treaty with which it cannot comply.
Australia is the world’s 13th-largest greenhouse emitter and the highest per capita emitter in the OECD. Now, because of the abolition of the carbon price, its emissions are rising for the first time in a decade.
Australia looks set to overshoot even its modest target of reducing emissions by 26-28% by 2030 relative to 2005 levels. And as commitments under the Paris Agreement will become stricter over time, with the deal requiring countries to ramp up their climate pledges every five years, Australia will be in an increasingly difficult and embarrassing position of having made promises it cannot keep.
This may set the scene for dithering by the Turnbull government, in much the same way as the Howard government held out against ratifying the Kyoto Protocol for a decade before finally proposing a climate policy when electorally it was already too late.
This year is off to a scorching start. Globally, February was a record-breaking 1.35℃ above average and March beat that record as soon as it was set. The effects are being felt from the polar regions, where the melting of the Greenland ice sheet is off the charts, to the tropics and subtropics, where record warm waters have bleached the Great Barrier Reef.
We know that to make a meaningful contribution to combating climate change, Australia needs a credible path to net zero emissions by 2050. To do this the Turnbull government must match its international commitments with effective laws and policies at home.
Legislating Australia’s climate targets, setting a national cap on emissions, and pricing carbon pollution are vital if Australia’s signature on the Paris Agreement is to mean anything at all.

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Earth Flirts with a 1.5-Degree Celsius Global Warming Threshold

Scientific AmericanClimate Central

Analysis suggests climate change is on track to be much warmer
Credit: Liam Moloney/Flickr, CC BY-SA 2.0

Global leaders are meeting in New York this week to sign the Paris climate agreement. One of the expressed purposes of the document is to limit warming to “well below 2°C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5°C.”
A Climate Central analysis shows that the world will have to dramatically accelerate emissions reductions if it wants to meet that goal. The average global temperature change for the first three months of 2016 was 1.48°C, essentially equaling the 1.5°C warming threshold agreed to by COP 21 negotiators in Paris last December.
February exceeded the 1.5°C target at 1.55°C, marking the first time the global average temperature has surpassed the sobering milestone in any month. March followed suit checking in at 1.5°C. January’s mark of 1.4°C, put the global average temperature change from early industrial levels for the first three months of 2016 at 1.48°C.

Climate Central scientists and statisticians made these calculations based on an average of global temperature data reported by NASA and the National Oceanic and Atmospheric Administration (NOAA). But rather than using the baselines those agencies employ, Climate Central compared 2016’s temperature anomalies to an 1881-1910 average temperature baseline, the earliest date for which global temperature data are considered reliable. NASA reports global temperature change in reference to a 1951-1980 climate baseline, and NOAA reports the anomaly in reference to a 20th century average temperature.
NASA’s data alone showed a February temperature anomaly of 1.63°C above early industrial levels with March at 1.54°C.
Calculating a baseline closer to the pre-industrial era provides a useful measure of global temperature for policymakers and the public to better track how successful the world’s efforts are in keeping global warming below agreed-upon thresholds.
A similar adjustment can be applied to some of the temperature change projections in the most recent IPCC report.
The IPCC AR5 Working Group 1 Report contains projections of future global surface temperature change according to several scenarios of future socio-economic development, most of which are presented using a baseline of 1986 to 2005. The IPCC chose this baseline in order to provide its readers a more immediate base of comparison, the climate of the present world, which people are familiar with. But these representations may suggest that the Paris goals are easier to reach than is true.
The IPCC’s presentation of these scenarios was not designed to inform the discussion about warming limits (e.g., 1.5°C, 2°C goals of the Paris COP21 agreements). But the Panel does provide a way to make its projections of future warming consistent with discussions about targets.
 IPCC estimates, using the best and longest record available, show that the difference between the 1986-2005 global average temperature value used in most of the Panel’s projections, and pre-industrial global average temperature, is 0.61°C (0.55-0.67). Neglecting 0.61°C warming is not trivial, and makes a significant difference for the assessment of the goals established in Paris. In fact, 0.61°C amounts to about half the warming already experienced thus far.
To capture this warming and display the IPCC warming time series relative to the pre-industrial period, Climate Central adjusted a well known IPCC projection (SPM7(a)) to reflect a 1880-1910 baseline. This adjustment has a significant effect on the dates at which the 1.5 and 2°C thresholds are crossed, moving them up by about 15-20 years.
If current emissions trends continue (RCP8.5) we could cross the 1.5°C threshold in 10 to 15 years, somewhere between the years 2025-2030, compared to 2045-2050 when a 1985-2005 baseline is used. 
The dramatic global hot streak that kicked off 2016 doesn’t mean the world has already failed to meet the goals in the Paris agreement. Three months do not make a year, and it is unlikely that 2016 will exceed the 1881-1910 climate-normal by 1.5°C. This year is also in the wake of a strong El NiƱo, when higher-than-average temperatures would be expected.
And of course, exceeding the 1.5°C threshold for even an entire year would not mean that global temperatures had in fact risen to that point, never (at least within our lifetime) to drop back below it as it’s too short of a timeframe to make that determination.
But the hot start for 2016 is a notable symbolic milestone. The day the world first crossed the 400 parts per million (ppm) threshold for atmospheric carbon dioxide heralded a future of ever increasing carbon dioxide. So too, do the first three months of 2016 send a clear signal of where our world is headed and how fast we are headed there if drastic actions to reduce carbon emissions are not taken immediately.

Background
On Dec.12, 2015, the 21st Conference of the Parties to the U.N. Framework Convention on Climate Change approved the Paris Agreement committing 195 nations of the world to “holding the increase in the global average temperature to well below 2°C above preindustrial levels and pursuing efforts to limit the temperature increase to 1.5°C.” The pact commits the world to adopt nationally determined policies to limit greenhouse gas emissions in accord with those goals.
The 2°C goal represents a temperature increase from a pre-industrial baseline that scientists believe will maintain the relatively stable climate conditions that humans and other species have adapted to over the previous 12,000 years. It will also minimize some of the worst impacts of climate change: drought, heat waves, heavy rain and flooding, and sea level rise. Limiting the global surface temperature increase to 1.5°C would lessen these impacts even further.
1.5 and 2°C are not hard and fast limits beyond which disaster is imminent, but they are now the milestones by which the world measures all progress toward slowing global warming. And yet it is surprisingly difficult to find objective measures that answer the question, where are we today on the path toward meeting the 1.5 or 2°C goals?
Every month NOAA and NASA update their global surface temperature change analysis, using data from the Global Historical Climate Network, and methods validated in the peer-reviewed literature (Hansen et al. 2010; NCDC). The monthly updates are posted on their websites, and made available to the public along with the underlying data and assumptions that go into their calculations.
These calculations are enormously useful for understanding the magnitude and pace of global warming. In fact, they are the bedrock measurements validating the fact that our planet is warming at all.
But none present their results in comparison to a pre-industrial climate normal.

Methods and Results
The NASA and NOAA monthly updates are presented as anomalies, or as the deviation from a baseline climate normal, calculated as an average of a 30-year reference period, or the 20th century average; they do not represent an absolute temperature increase from a specific date. NASA presents their results in reference to a 1951 to 1980 average temperature, NOAA in reference to a 20th century average temperature.
The NASA results, calculated by Goddard Institute for Space Studies are published monthly on the NASA/GISS website (GISTEMP). NOAA methods and monthly updates are published via the National Centers for Environmental Information here.
Climate Central used data from NASA and NOAA to create an 1881 to 1910 climate normal for the months of January, February, and March. We then compared the reported monthly 2016 anomaly for each of these months to this “early-industrial” baseline reference period.  These anomalies were then averaged to produce a mean monthly NASA/NOAA anomaly for each month. The results are presented below.
The NASA anomaly is considerably higher than the anomaly reported by NOAA. This reflects the fact the NASA’s calculations are tuned to account for temperature changes at the poles, where there are far fewer monitoring stations. NOAA relies only on historical station data and makes no adjustment to account for sparse records at the poles, where warming has been more rapid relative to non-polar regions.

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Leading Scientists Urge UK Newspaper The Times To Improve 'Sub-Standard' Climate Reporting

ABC NewsSara Phillips

The scientists say The Times has become a "laughing stock" for publishing poor quality science. (ABC News: Mark Doman)
Some of the world's most eminent scientists have written to the editor of UK newspaper The Times to complain about its coverage of climate science.
They suggest the newspaper may be unduly influenced by the Global Warming Policy Foundation, which, despite its name, denies humans are causing climate change.
Baron John Krebs, a highly decorated biologist is behind the push, writing that the newspaper has become a "laughing stock" for publishing poor quality science.
"The implications for your credibility extend beyond your energy and climate change coverage," he said in the letter.
Key points:
  • The scientists believe the paper is unduly influenced by a lobby group
  • The claim the coverage has made the paper a "laughing stock"
  • The say The Times has on occasions "misrepresented good science"
"Why should any reader who knows about energy and climate change respect your political analysis, your business commentary, even your sports reports, when in this one important area you are prepared to prioritise the marginal over the mainstream?"
The letter was signed by Krebs and 12 other peers, including:
  • Baron Robert 'Bob' May, a former chief scientist of the UK
  • Baron Martin Rees of Ludlow, the Astronomer Royal
  • Baron Julian Hunt of Chesterton, former chief executive of the British Meteorological Office
  • Baron David Puttnam, the Oscar-winning filmmaker behind Chariots of Fire and The Killing Fields
The peers took particular issue with two articles by environment editor Ben Webster, both of which were republished by The Australian.
One article - Planet is not overheating, says Professor - reported on science which was sponsored by the Global Warming Policy Foundation.
The Global Warming Policy Foundation, which has five peers of its own on its board of trustees, describes itself as "open-minded on the contested science of global warming".
"[M]any of the sub-standard news stories and opinion pieces appear to concern, in some way, GWPF," it said.
"Whether any newspaper should involve itself repeatedly with any pressure group is a matter for debate; it would be deeply perturbing to find that a paper as eminent as The Times could allow a small NGO, particularly one whose sources of financing are unknown, a high degree of influence."
They said the second article -Scientists 'are exaggerating carbon threat to marine life' - misrepresented good science.
A follow-up opinion piece from a Times columnist "in either ignorance or disregard" failed to mention the scientist's criticism of the Times' report on his work.
"As Editor, you are of course entitled to take whatever editorial line you feel is appropriate. Are you aware, however, how seriously you may be compromising The Times' reputation by pursuing a line that cleaves so tightly to a particular agenda, and which is based on such flimsy evidence?" the peers wrote.
"Climate science has proven remarkably robust to repeated scrutiny, and multiple lines of evidence indicate that climate change and ocean acidification pose serious and increasing risks for the future."

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