On 8 October
2018 the UN International Panel On
Climate Change issued this media release:
Incheon, Republic of
Korea, October 8 – Limiting global warming to 1.5°C would require rapid,
far-reaching and unprecedented changes in all aspects of society, the IPCC said
in a new assessment. With clear benefits to people and natural ecosystems,
limiting global warming to 1.5°C compared to 2°C could go hand in hand with
ensuring a more sustainable and equitable society, the Intergovernmental Panel
on Climate Change (IPCC) said on Monday.
The Special Report on Global Warming of 1.5°C was approved by the IPCC on Saturday in Incheon, Republic of Korea. It will be a key scientific input into the Katowice Climate Change Conference in Poland in December, when governments review the Paris Agreement to tackle climate change.
"With more than 6,000 scientific references cited and the dedicated contribution of thousands of expert and government reviewers worldwide, this important report testifies to the breadth and policy relevance of the IPCC," said Hoesung Lee, Chair of the IPCC.
Ninety-one authors and review editors from 40 countries prepared the IPCC report in response to an invitation from the United Nations Framework Convention on Climate Change (UNFCCC) when it adopted the Paris Agreement in 2015.
The report's full name is Global Warming of 1.5°C, an IPCC special report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty.
"One of the key messages that comes out very strongly from this report is that we are already seeing the consequences of 1°C of global warming through more extreme weather, rising sea levels and diminishing Arctic sea ice, among other changes," said Panmao Zhai, Co-Chair of IPCC Working Group I.
The report highlights a number of climate change impacts that could be avoided by limiting global warming to 1.5°C compared to 2°C, or more. For instance, by 2100, global sea level rise would be 10 cm lower with global warming of 1.5°C compared with 2°C. The likelihood of an Arctic Ocean free of sea ice in summer would be once per century with global warming of 1.5°C, compared with at least once per decade with 2°C. Coral reefs would decline by 70-90 percent with global warming of 1.5°C, whereas virtually all (> 99 percent) would be lost with 2°C.
"Every extra bit of warming matters, especially since warming of 1.5°C or higher increases the risk associated with long-lasting or irreversible changes, such as the loss of some ecosystems," said Hans-Otto Pörtner, Co-Chair of IPCC Working Group II.
Limiting global warming would also give people and ecosystems more room to adapt and remain below relevant risk thresholds, added Pörtner. The report also examines pathways available to limit warming to 1.5°C, what it would take to achieve them and what the consequences could be. "The good news is that some of the kinds of actions that would be needed to limit global warming to 1.5°C are already underway around the world, but they would need to accelerate," said Valerie Masson-Delmotte, Co-Chair of Working Group I.
The report finds that limiting global warming to 1.5°C would require "rapid and far-reaching" transitions in land, energy, industry, buildings, transport, and cities. Global net human-caused emissions of carbon dioxide (CO2) would need to fall by about 45 percent from 2010 levels by 2030, reaching 'net zero' around 2050. This means that any remaining emissions would need to be balanced by removing CO2 from the air.
"Limiting warming to 1.5°C is possible within the laws of chemistry and physics but doing so would require unprecedented changes," said Jim Skea, Co-Chair of IPCC Working Group III.
Allowing the global temperature to temporarily exceed or 'overshoot' 1.5°C would mean a greater reliance on techniques that remove CO2 from the air to return global temperature to below 1.5°C by 2100. The effectiveness of such techniques are unproven at large scale and some may carry significant risks for sustainable development, the report notes.
"Limiting global warming to 1.5°C compared with 2°C would reduce challenging impacts on ecosystems, human health and well-being, making it easier to achieve the United Nations Sustainable Development Goals," said Priyardarshi Shukla, Co-Chair of IPCC Working Group III.
The decisions we make today are critical in ensuring a safe and sustainable world for everyone, both now and in the future, said Debra Roberts, Co-Chair of IPCC Working Group II.
"This report gives policymakers and practitioners the information they need to make decisions that tackle climate change while considering local context and people's needs. The next few years are probably the most important in our history," she said.
The IPCC is the leading world body for assessing the science related to climate change, its impacts and potential future risks, and possible response options.
The report was prepared under the scientific leadership of all three IPCC working groups. Working Group I assesses the physical science basis of climate change; Working Group II addresses impacts, adaptation and vulnerability; and Working Group III deals with the mitigation of climate change.
The Paris Agreement adopted by 195 nations at the 21st Conference of the Parties to the UNFCCC in December 2015 included the aim of strengthening the global response to the threat of climate change by "holding the increase in the global average temperature to well below 2°C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5°C above pre-industrial levels."
As part of the decision to adopt the Paris Agreement, the IPCC was invited to produce, in 2018, a Special Report on global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways. The IPCC accepted the invitation, adding that the Special Report would look at these issues in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty.
Global Warming of 1.5°C is the first in a series of Special Reports to be produced in the IPCC's Sixth Assessment Cycle. Next year the IPCC will release the Special Report on the Ocean and Cryosphere in a Changing Climate, and Climate Change and Land, which looks at how climate change affects land use.
The Summary for Policymakers (SPM) presents the key findings of the Special Report, based on the assessment of the available scientific, technical and socio-economic literature relevant to global warming of 1.5°C.
The Summary for Policymakers of the Special Report on Global Warming of 1.5°C (SR15) is available at https://www.ipcc.ch/report/sr15 or www.ipcc.ch.
The Special Report on Global Warming of 1.5°C was approved by the IPCC on Saturday in Incheon, Republic of Korea. It will be a key scientific input into the Katowice Climate Change Conference in Poland in December, when governments review the Paris Agreement to tackle climate change.
"With more than 6,000 scientific references cited and the dedicated contribution of thousands of expert and government reviewers worldwide, this important report testifies to the breadth and policy relevance of the IPCC," said Hoesung Lee, Chair of the IPCC.
Ninety-one authors and review editors from 40 countries prepared the IPCC report in response to an invitation from the United Nations Framework Convention on Climate Change (UNFCCC) when it adopted the Paris Agreement in 2015.
The report's full name is Global Warming of 1.5°C, an IPCC special report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty.
"One of the key messages that comes out very strongly from this report is that we are already seeing the consequences of 1°C of global warming through more extreme weather, rising sea levels and diminishing Arctic sea ice, among other changes," said Panmao Zhai, Co-Chair of IPCC Working Group I.
The report highlights a number of climate change impacts that could be avoided by limiting global warming to 1.5°C compared to 2°C, or more. For instance, by 2100, global sea level rise would be 10 cm lower with global warming of 1.5°C compared with 2°C. The likelihood of an Arctic Ocean free of sea ice in summer would be once per century with global warming of 1.5°C, compared with at least once per decade with 2°C. Coral reefs would decline by 70-90 percent with global warming of 1.5°C, whereas virtually all (> 99 percent) would be lost with 2°C.
"Every extra bit of warming matters, especially since warming of 1.5°C or higher increases the risk associated with long-lasting or irreversible changes, such as the loss of some ecosystems," said Hans-Otto Pörtner, Co-Chair of IPCC Working Group II.
Limiting global warming would also give people and ecosystems more room to adapt and remain below relevant risk thresholds, added Pörtner. The report also examines pathways available to limit warming to 1.5°C, what it would take to achieve them and what the consequences could be. "The good news is that some of the kinds of actions that would be needed to limit global warming to 1.5°C are already underway around the world, but they would need to accelerate," said Valerie Masson-Delmotte, Co-Chair of Working Group I.
The report finds that limiting global warming to 1.5°C would require "rapid and far-reaching" transitions in land, energy, industry, buildings, transport, and cities. Global net human-caused emissions of carbon dioxide (CO2) would need to fall by about 45 percent from 2010 levels by 2030, reaching 'net zero' around 2050. This means that any remaining emissions would need to be balanced by removing CO2 from the air.
"Limiting warming to 1.5°C is possible within the laws of chemistry and physics but doing so would require unprecedented changes," said Jim Skea, Co-Chair of IPCC Working Group III.
Allowing the global temperature to temporarily exceed or 'overshoot' 1.5°C would mean a greater reliance on techniques that remove CO2 from the air to return global temperature to below 1.5°C by 2100. The effectiveness of such techniques are unproven at large scale and some may carry significant risks for sustainable development, the report notes.
"Limiting global warming to 1.5°C compared with 2°C would reduce challenging impacts on ecosystems, human health and well-being, making it easier to achieve the United Nations Sustainable Development Goals," said Priyardarshi Shukla, Co-Chair of IPCC Working Group III.
The decisions we make today are critical in ensuring a safe and sustainable world for everyone, both now and in the future, said Debra Roberts, Co-Chair of IPCC Working Group II.
"This report gives policymakers and practitioners the information they need to make decisions that tackle climate change while considering local context and people's needs. The next few years are probably the most important in our history," she said.
The IPCC is the leading world body for assessing the science related to climate change, its impacts and potential future risks, and possible response options.
The report was prepared under the scientific leadership of all three IPCC working groups. Working Group I assesses the physical science basis of climate change; Working Group II addresses impacts, adaptation and vulnerability; and Working Group III deals with the mitigation of climate change.
The Paris Agreement adopted by 195 nations at the 21st Conference of the Parties to the UNFCCC in December 2015 included the aim of strengthening the global response to the threat of climate change by "holding the increase in the global average temperature to well below 2°C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5°C above pre-industrial levels."
As part of the decision to adopt the Paris Agreement, the IPCC was invited to produce, in 2018, a Special Report on global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways. The IPCC accepted the invitation, adding that the Special Report would look at these issues in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty.
Global Warming of 1.5°C is the first in a series of Special Reports to be produced in the IPCC's Sixth Assessment Cycle. Next year the IPCC will release the Special Report on the Ocean and Cryosphere in a Changing Climate, and Climate Change and Land, which looks at how climate change affects land use.
The Summary for Policymakers (SPM) presents the key findings of the Special Report, based on the assessment of the available scientific, technical and socio-economic literature relevant to global warming of 1.5°C.
The Summary for Policymakers of the Special Report on Global Warming of 1.5°C (SR15) is available at https://www.ipcc.ch/report/sr15 or www.ipcc.ch.
The aforementioned summary forms part of the scientific findings
informing the IPCC 6th Assessment Report currently being prepared by
the working groups.
Australian Prime Minister and Liberal MP for Cook Scott Morrison sought to downplay its significance because it made
no specific recommendations on a country by country basis.
He stated that last year the “same report” said that “Australia was
right on the money when it came to the mix of climate change policies.
.@ScottMorrisonMP: on the climate report: This report deals with the global situation, it does not provide recommendations to Australia or Australia’s program.— Sky News Australia (@SkyNewsAust) October 8, 2018
MORE: https://t.co/Cj9SlGufQm #newsday pic.twitter.com/VXRgEesW5i
As far as I
can tell last year’s special report did not give Australia a glowing endorsement.
If one wants an IPCC opinion on Australia's climate change policy one has to go documents such as this......
If one wants an IPCC opinion on Australia's climate change policy one has to go documents such as this......
This
is an excerpt from the IPCC Fifth Assessment Report (Working
Group II Report "Climate Change 2014: Impacts, Adaptation, and
Vulnerability") on the subject of Australia:
As prime minister Morrison has recently announced he will not be honouring Australia's $200 million pledge to the UNFCCC sponsored global Green Climate Fund (GCF).
It is no secret that Scott Morrison admires US President Donald Trump and right wing American politics generally.
As Morrison argues an inability for Australian action on climate change to make a real difference to ongoing global warming, given we only produce est. one percent of all annual global greenhouse gas emissions, one suspects that he would also agree with this reasoning behind the latest Trump administration refusal to act on climate change.
Adaptation
is already occurring and adaptation planning is becoming embedded in some
planning processes, albeit
mostly at the conceptual rather than implementation level (high
confidence). Many solutions for reducing energy and water consumption in urban
areas with co-benefits for climate change adaptation (e.g., greening cities and
recycling water) are already being implemented. Planning for 1375 25
Australasia Chapter 25 reduced water availability in southern Australia and for
sea level rise in both countries is becoming adopted widely, although implementation of specific
policies remains piecemeal, subject to political changes, and open to legal
challenges. {25.4; Boxes 25-1, 25-2, 25-9} Adaptive capacity is
generally high in many human systems, but implementation faces major
constraints, especially for transformational responses at local and community
levels (high confidence). Efforts to understand and enhance adaptive capacity
and adaptation processes have increased since the AR4, particularly in Australia.
Constraints on
implementation arise from: absence of a consistent information base and
uncertainty about projected impacts; limited financial and human resources to
assess local risks and to develop and implement effective policies and rules;
limited integration of different levels of governance; lack of binding guidance
on principles and priorities; different attitudes towards the risks associated
with climate change; and different values placed on objects and places at risk.
{25.4, 25.10.3; Table 25-2; Box a5-1} [my yellow highlighting]
Successive Coalition federal governments (with Scott Morrison as a cabinet minister) typified this half-hearted approach to climate change mitigation. After four years the largely ineffective Emissions Reduction Fund is almost empty, the Renewable Energy Target has been all but abandoned and the National Energy Agreement is defunct, with the government's attention turned towards growing fossil fuel energy.As prime minister Morrison has recently announced he will not be honouring Australia's $200 million pledge to the UNFCCC sponsored global Green Climate Fund (GCF).
It is no secret that Scott Morrison admires US President Donald Trump and right wing American politics generally.
As Morrison argues an inability for Australian action on climate change to make a real difference to ongoing global warming, given we only produce est. one percent of all annual global greenhouse gas emissions, one suspects that he would also agree with this reasoning behind the latest Trump administration refusal to act on climate change.
The Washington Post, 28
September 2018:
Last month, deep in a
500-page environmental impact statement, the Trump administration made a
startling assumption: On its current course, the planet will warm a disastrous seven degrees by the end of this century.
A rise of seven degrees
Fahrenheit, or about four degrees Celsius, compared with preindustrial levels
would be catastrophic, according to scientists. Many coral reefs would dissolve
in increasingly acidic oceans. Parts of Manhattan and Miami would be underwater
without costly coastal defenses. Extreme heat waves would routinely smother
large parts of the globe.
But the administration
did not offer this dire forecast, premised on the idea that the world will fail
to cut its greenhouse gas emissions, as part of an argument to combat climate
change. Just the opposite: The analysis assumes the planet’s fate is already
sealed.
The draft statement,
issued by the National Highway Traffic Safety Administration (NHTSA), was
written to justify President Trump’s decision to freeze federal fuel-efficiency
standards for cars and light trucks built after 2020. While the proposal would
increase greenhouse gas emissions, the impact statement says, that policy would
add just a very small drop to a very big, hot bucket.
“The amazing thing
they’re saying is human activities are going to lead to this rise of carbon
dioxide that is disastrous for the environment and society. And then they’re
saying they’re not going to do anything about it,” said Michael MacCracken, who
served as a senior scientist at the U.S. Global Change Research Program from
1993 to 2002.....
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