Antarctica’s melting ice sheet could retreat much faster than previously thought.
Antarctica’s melting ice sheet could retreat much faster than previously
thought, new research suggests. The evidence comes from markings on the
seafloor off Norway that record the pull-back of a melting European ice
sheet thousands of years ago.
Today, the fastest withdrawing glaciers in
Antarctica are seen to retreat by up to 30m a day. But if they sped up, the
extra melt water would have big implications for sea-level rises around the
globe. Ice losses from Antarctica caused by climate change have already
pushed up the surface of the world’s oceans by nearly 1cm since the 1990s.
The researchers found that with the Norwegian sheet, the maximum retreat
was more than 600m a day.
BBC 5th April 2023
Three consecutive years of rapidly increasing carbon dioxide emissions
Record temperatures, devastating floods and superstorms are causing death
and destruction across the planet but humans are failing to cut greenhouse
gas emissions fueling the climate emergency, new US data shows. Atmospheric
levels of carbon dioxide (CO2), methane and nitrous oxide – the
greenhouse gases emitted by human activity that are the most significant
contributors to global heating – continued to increase rapidly during
2022, according to the National Oceanic and Atmospheric Administration
(Noaa).
Carbon dioxide levels rose by more than two parts per million (ppm)
for the 11th consecutive year: the highest sustained rate of CO2 increases
since monitoring began 65 years ago. Before 2013, scientists had never
recorded three consecutive years of such high CO2 growth.
Guardian 6th April 2023
https://www.theguardian.com/environment/2023/apr/06/greenhouse-gas-emissions-noaa-report-us-data
The British government doesn’t want to talk about its nuclear weapons. The British public does
Women are far less likely than men to support UK possession (28 percent of women, compared with 53 percent of men)
Bulletin, By Tim Street, Harry Spencer, Shane Ward | April 6, 2023
In January 2023 British Pugwash and the polling company Savanta conducted a survey of UK public opinion on nuclear weapons issues and potential support for policies that advance nuclear arms control, disarmament, and non-proliferation.
The poll involved 2,320 UK adults who were asked about the Russia-Ukraine war, the United Kingdom’s ongoing replacement of its nuclear weapon system, the possibility that US nuclear weapons will again be stationed in the United Kingdom, the significant increase to the UK’s nuclear warhead stockpile cap, and the entry into force of the Treaty on the Prohibition of Nuclear Weapons.
Our polling results found some notable differences between the British public’s views and the policies of the UK government concerning nuclear weapons. While 40 percent of poll respondents support the United Kingdom possessing nuclear weapons, there is significant support for policies that would control, limit, or even eliminate the UK’s nuclear weapons—including among supporters of nuclear possession. For example, over a third of those who support the UK’s possession of nuclear weapons also support joining a multilateral disarmament treaty.
Despite the challenges involved, especially at a time of war in Europe, we at British Pugwash see an opportunity for UK political parties to adopt policies more supportive of nuclear arms control and disarmament. Our key findings revealed these differences between government policy and public opinion:
Use of nuclear weapons. The UK government’s policy is to consider using nuclear weapons “only in extreme circumstances of self-defence, including the defence of our NATO allies.” UK and NATO policy does not rule out the first use of nuclear weapons.
Our poll found that 48 percent of UK adults oppose the first use of nuclear weapons by the United Kingdom, and only 40 percent support first use. This finding builds on the results of the survey British Pugwash conducted in 2021, which found that two-thirds of the British public want NATO to renounce the first use of nuclear weapons.
Replacing nuclear weapons. The United Kingdom is replacing all four parts of its nuclear weapons system: submarines, missiles, warheads, and associated infrastructure. The estimated cost of the four new nuclear-armed submarines is £31 billion (about $38 billion), and the estimated total cost of replacing nuclear weapons between 2019 and 2070 is at least £172 billion ($212 billion).
Our poll found that 42 percent of UK adults think the estimated cost of replacing the UK’s nuclear weapons does not represent value for money.
Stationing US nuclear weapons in the United Kingdom. The UK government has previously allowed US nuclear weapons and nuclear-capable aircraft to be stored, maintained, and operated from UK military bases. Although the United Kingdom has not hosted US nuclear weapons since 2008, in April 2022 an analysis of US Defense Department documents reported that a facility at the Royal Air Force’s Lakenheath base in Suffolk—which is used by the US Air Force—was being upgraded, potentially allowing the United States to again deploy nuclear weapons there.
British public opinion is split over allowing the United States to deploy nuclear weapons on UK territory. Our poll found that 34 percent of UK adults oppose, and 32 percent support, stationing US nuclear weapons in the United Kingdom.
Treaty on the Prohibition of Nuclear Weapons. In 2017, 122 states voted in support of the Treaty, which prohibits the development, testing, production, acquisition, possession, stockpiling, and use of nuclear weapons, as well as any threat to use them. The United Kingdom has not signed or ratified the treaty. To join the treaty, the country would have to dismantle its nuclear arsenal or present a legally binding plan to do so.
Our poll found that 39 percent of UK adults support joining the ban treaty. Among 18- to 34-year-olds, 48 percent support joining the treaty, and only 13 percent are opposed.
Nuclear weapons possession. The United Kingdom is one of only nine countries possessing nuclear weapons. Our poll found that 40 percent of UK adults are in favor of possession. Women are far less likely than men to support UK possession (28 percent of women, compared with 53 percent of men). Some 27 percent of UK adults oppose UK nuclear possession, 29 percent neither support nor oppose nuclear possession, and 5 percent said they “don’t know” in response to this question.
Our poll also found that a minority of UK adults (39 percent) fully support the government’s decision to increase the UK’s nuclear warhead stockpile cap.
Even among supporters of nuclear possession, we found significant concerns about the government’s approach to nuclear weapons. For example, 23 percent of those who support nuclear possession don’t think the estimated cost of replacing the UK’s nuclear weapons represents value for money.
Furthermore, 38 percent of those who support UK nuclear possession do not want the military to use nuclear weapons first in a conflict. Notably, 35 percent of those who currently support the possession of nuclear weapons also want the United Kingdom to join the international ban treaty that would eliminate the country’s nuclear arsenal.
War in Ukraine. Our data indicate that Russia’s invasion of Ukraine has significantly strengthened support for UK possession of nuclear weapons among those who already favored possession. Two-thirds of those who support nuclear possession said the conflict strengthened their position on this issue.
We also saw increases in support for nuclear weapons possession among those who otherwise oppose nuclear possession. In our poll, 16 percent of those who oppose UK possession of nuclear weapons said the Ukraine conflict had increased their support for possession.
Responses to this particular question likely reflect wider public support for UK involvement in the Ukraine conflict and may thus be temporary. Moreover, 39 percent of UK adults said the Ukraine conflict had “made no difference” to their view on UK nuclear possession. Overall, our data suggest that a key impact of the Ukraine war has been to reinforce support for UK nuclear possession among UK adults who already held this view.
Uncertainty and ambivalence. Nearly a third of respondents gave an “on the fence” answer to several of the questions posed. For example, 29 percent said they did not support or oppose the UK’s possession of nuclear weapons; 30 percent said they neither support nor oppose the rise in the nuclear warhead stockpile cap; 28 percent said they neither support nor oppose US nuclear weapons again being stationed in the United Kingdom; and 29 percent said they “don’t know” or are “unsure” whether the estimated cost of the UK nuclear weapons replacement program represents value for money.
These findings indicate that there is significant uncertainty about, and ambivalence toward, nuclear weapons among UK adults.
Why our survey matters.………………………………………………………………………………..
Greater public and parliamentary participation in decision making would improve the quality and legitimacy of the United Kingdom’s international policy. Yet decisions on nuclear weapons (and national security more generally) are largely made behind closed doors. The lack of democracy, transparency, and accountability surrounding nuclear weapons has a clear impact on the British public’s interest in and understanding of the issues. The findings of our poll may partly be explained by the lack of awareness and the absence of public debate on nuclear matters in the United Kingdom. The large number of “don’t know” and “on the fence” responses indicates that many UK adults do not feel well enough informed to make a judgment on these issues.
…………………………………………………………….. Our polling data clearly show a sizable gap between public attitudes and the government’s nuclear weapons policy. With a UK general election likely to be held in 2024, British political parties should be developing policies that better represent public views on nuclear weapons issues—and increase democracy, transparency, and accountability in defense and foreign policy more generally. https://thebulletin.org/2023/04/the-british-government-doesnt-want-to-talk-about-its-nuclear-weapons-the-british-public-does/
—
France’s riverside reactor build plans “irresponsible” – expert
MURIEL BOSELLI, Paris, 07 Apr 2023, https://www.montelnews.com/news/1477431/edfs-riverside-reactor-build-plans-irresponsible–expert
(Montel) France’s plan to build two riverside reactors is “irresponsible”, given the acceleration of global warming-related water strain, nuclear expert and critic Yves Marignac told Montel.
Climate change has raised fears of extreme temperatures and droughts that will cause more outages at EDF’s 44 nuclear reactors – out of 56 – that are located along rivers and use water for cooling.
The average summer flow of the Rhone, on which 22% of France’s nuclear capacity is installed, could fall by 20% within 30 years, according to a recent study by the Rhone-Mediterranean-Corsica Water Agency.
However, EDF plans to build two additional reactors along the Rhone.
“We can always adapt the reactors to cool themselves by reducing their water withdrawal, as some reactors do in the desert,” said Marignac, but added that these costly developments “remove the interest of placing installations along rivers”.
Higher water use
He said he also feared a “considerable increase” in competition between water-intensive sectors such as agriculture, industry, energy and tourism.
EDF plans to build three pairs of European pressurised reactors (EPRs) by 2042-43 – one at Penly, a second at Gravelines (both on the coast), and a third at Bugey or Tricastin, on the Rhone.
The decision would be made by the end of the year, Joel Barre, inter-ministerial delegate for new nuclear power plants, told Montel.
Last week, president Emmanuel Macron announced a vast investment plan to adapt nuclear power plants to climate change, notably by equipping riverside units with air-cooling towers to make them less dependent on the temperature of waterways.
Although this system allows reactors to continue producing power during hot periods, it consumes much more water as a significant part of the volume withdrawn evaporates through the towers during cooling.
French energy minister Agnes Pannier-Runacher said earlier this week that scenarios established by the international group of climate experts Giec had shown “very limited losses [of production]”.
“Critical” risk
However, a recent report by France’s auditors’ court warned the impact of global warming on the French nuclear fleet could become “critical” by 2050, with three to four times more unavailability than today.
Last summer, France’s nuclear safety authority ASN authorised EDF to exceed temperature limits for some riverside plants to enable units to continue producing power during the drought.
Thibault Laconde, founder of climate risk assessment start-up Callendar, said EDF’s Tricastin site in southeastern France was a better choice than Bugey for cooling because it was near a section of the Rhone that had cool water inflow from the Isere river.
Melting ice caps
Building reactors by the sea also raised questions, experts said, because of uncertainties about the rising sea levels during the EPRs’ lifespan, which EDF has set at a minimum of 60 years.
The auditors’ court has called on EDF to anticipate “the low probability” of an acceleration in ice cap melting, which would lead to a rise in the average sea level of nearly 2 metres by 2100 and 5m by 2150.
However, EDF has only incorporated a sea level rise of around 1.2m into the design of its EPR reactors, said Barre.
EDF did not respond to Montel’s requests to comment.
Ocean Heat, An El Nino on the Way, Potential New Global Temperature Record by 2024 — robertscribbler
The world ocean system is much hotter than normal. And El Nino hasn’t even arrived yet. With this major ocean warming event starting to show up, it looks like 2023-2024 will see global surface temperatures fall yet again. Fossil fuel burning is driving global temperatures higher and putting everyone at risk.
Ocean Heat, An El Nino on the Way, Potential New Global Temperature Record by 2024 — robertscribbler
April 8 Energy News — geoharvey
Opinion: ¶ “Beyond Going Green, Here’s Why You Should Buy An EV” • Business Insider’s Tim Levin shared his thoughts on going electric after driving 24 different EVs. The story compiles his’s thoughts on why buyers should go electric, including experiences driving EVs from brands such as Tesla, Volkswagen, Rivian, Hyundai, Kia, Mercedes, and more. […]
April 8 Energy News — geoharvey
1 This month
of the week – Disrupting War & Militarism in Oceania. Active solidarity. Radical practice.
Antinuclear 