Archive for climate change

Nature tidbits [21 Aug 2025]

Posted in Books, pictures, University life with tags , , , , , , , , , , , , , , , , on October 16, 2025 by xi'an

The cover of this Nature issue is a fake!, being an artist’s rendering of a supernova (2021yfj) before it exploded, with the core exhibited as rich in silicon and sulfur. (The heaviest element in stars is iron, resulting from the fusion of the above. When the iron mass exceeds a limit, the star collapse into a neutron star or a black hole.)

On the Trump 2.0 administration’s attack-on-science front, an editorial exposes the irresponsibility of cancelling grants for mRNA studies (which Trump 1.0 supported during the COVID crisis). And a longer article points out the radical switch in managing federal grants, committees moving from scientists to political appointees, searching for “anti-American values”… And another one on the backlash following the report from said administration about climate change and global warming. (As blogged recently.)

At a more conceptual (and international) level, an article questions the usual stand on declining birth rates as being problematic. While acknowledging that public incentives have a highly variable mileage, the article remains vague on how supporting an ageing population while keeping an homogeneous welfare support will prove feasible. A second socio-economic article muses about the lack of a downward curve in the cost of electric cars, despite the drop in battery costs, pointing out the inefficiency of state support that creates profit bubbles for the manufacturers. Stricter policies on combustion vehicles similarly seem inefficient, given the violent reactions of car owners (as in the Gilets Jaunes revolt). The EU has alas recently backed down on its goal of prohibiting new combustion engines by 2035.

In shark contrast, a review paper document the rising probability of a climate catastrophe induced by the melting Antarctica, which could prove of a higher magnitude than the melting Arctic. (Even though the introduction article is rather confusing, mixing this issue with the pollution brought by Antarctic tourism and mentioning indigenous populations that do not exist on the 7th Continent).

And on the (weekly) AI front, the announcement of the downloadable gpt-oss from OpenAI, which I plan to check. And the debate on whether or not AI generated papers can plagiarise, again a poorly focussed article mostly missing the issues of the scientific worth of such papers (and the basic fact that they 100% plagiarise the literature dataset they learned from!).

and it only gets worse & worse & …

Posted in Books, Kids, pictures, Travel with tags , , , , , , , , , , , , , , , , , , , , , , , , , , , , , on August 13, 2025 by xi'an

“

“We’re going to get some back. We’re going to get some switched. There will be some swapping of territories, to the betterment of both [Ukraine and Russia]. You’re looking at territory that’s been fought over for three and a half years, a lot of Russians have died. A lot of Ukrainians have died” – DT, 08 Aug

“I have ordered two Nuclear Submarines to be positioned in the appropriate regions, just in case these foolish and inflammatory statements [by Dmitry Medvedev] are more than just that.  Words are very important, and can often lead to unintended consequences, I hope this will not be one of those instances.” – DT, 01 Aug

“[The 23 July Energy Department report] critically assesses many areas of ongoing scientific inquiry that are frequently assigned high levels of confidence — not by the scientists themselves but by the political bodies involved, such as the United Nations or previous presidential administrations. Unlike previous administrations, the Trump administration is committed to engaging in a more thoughtful and science-based conversation about climate change and energy.” – Ben Dietderich, DoE, 31 July

“Climate change is real, and it deserves attention. But it is not the greatest threat facing humanity. As someone who values data, I know that improving the human condition depends on expanding access to reliable, affordable energy. If we empower innovation rather than restrain it, America can lead the world in providing more abundant energy” Chris Wright, Secretary of Energy, 29 July

“Wow! Canada has just announced that it is backing statehood for Palestine. That will make it very hard for us to make a Trade Deal with them.” – DT, 31 July

“The Trump Administration dismantled American aid organisations in a politically-driven witch hunt for ‘waste, fraud, and abuse.’ Now, they are letting millions of dollars of lifesaving humanitarian aid go to waste. President Trump is preparing to let over $12 million worth of HIV-prevention supplies and contraceptives, which have already been purchased for use in developing countries, be destroyed, rather than let other countries or groups take control of and distribute the products. HIV is one of the deadliest diseases in the world. People will die because of this decision. Their lives are at risk because of President Trump.” – Senator Rosa DeLauro, 18 July

which State no longer bans neonicotinoids, farm oversize, water retention mega-basins, and muzzles its biodiversity and food security agencies?

Posted in Kids, Travel, Wines with tags , , , , , , , , , , , , , , , , , , , , , on July 24, 2025 by xi'an

Answer: The French State, most sadly. Both chambers voted in favour of a U-turn in environmental and public health protections, aptly named Loi Duplomb (Lead Law!) that sees

  • Authorising anew neonicotinoïds, that are proven harmful to biodiversity and human health, which are nearly banned by the EU
  • Allowing agents to being simultaneously pesticide advisor and provider
  • Removing limitations on megafarm sizes and limiting public consultations on new projects
  • Promoting water storage projects (so-called megabasins) that increase water shortage and only benefit intensive agriculture
  • Introducing local supervision of the State Biodiversity Office (OFB) and imposing body cameras on its inspectors (some of whom were killed by farmers)
  • Increasing political control on the State Food Security Agency (ANSA) about its judgements on phytopharmaceutical products

The new law gets its name of a right-wing senator and farmer, with the heavy support of the agroindustrial lobby (FNSEA). And was voted with the support of the far-right, right and most of the central block parties, catering to their farming voters. Spray, baby, spray….!

and it only gets better [?!]

Posted in Books, Kids, pictures, Travel, University life with tags , , , , , , , , , , , , , , , , , , , , , , , on October 21, 2024 by xi'an

“Those cities are gone, they’re gone, and we continue to give billions of dollars to a man [President Zelensky] who refused to make a deal” – DT, 25 Sept

“What do we do to protect our kids? I unfortunately think that we have to increase security in our schools. We have to make the doors lock better. We have to make the door stronger. We’ve got to make the windows stronger,” – JD Vance, 01 Oct

“One of the things that I’ve noticed some of our Democratic friends talking a lot about is a concern about carbon emissions, this idea that carbon emissions drives all the climate change … let’s just say that’s true, just for the sake of argument.” – JD Vance, 01 Oct

“I’m the father of IVF (…) I got a call from Katie Britt, a young, just a fantastically attractive person from Alabama (…) I said, explain IVF, very IVF, very quickly. And within about two minutes, I understood it” – DT, 17 Oct

And, then, most unexpectedly…

“It is imperative to guarantee that women have autonomy in deciding their preference of having children, based on their own convictions, free from any intervention or pressure from the government. Why should anyone other than the woman herself have the power to determine what she does with her own body? A woman’s fundamental right of individual liberty, to her own life, grants her the authority to terminate her pregnancy if she wishes. Restricting a woman’s right to choose whether to terminate an unwanted pregnancy is the same as denying her control over her own body. I have carried this belief with me throughout my entire adult life.” – Melanija Knavs, 03 Oct

“I am sympathetic to all who wish to find a better life in this country. As an immigrant myself, I intimately understand the necessary if arduous process of legally becoming an American. As a mother myself, I stressed: ‘The government should not be taking children away from their parents.’” – Melanija Knavs, 03 Oct

Nature snapshots

Posted in Books, Kids, Mountains, pictures, Travel with tags , , , , , , , , , , , , , , , , , , , , , , , on September 19, 2024 by xi'an

Some quick breakfast reads from the 22 August issue of Nature, beyond the nice pun in the cover title (which reads like Lonely Planet at first glance!) capturing a rare blooming of plants in the drylands of the Judaean Desert in 2015, discussing the higher diversity of plants in dry environments,

  • a tribune about the declining number of junior researchers in South Korea (with a supplementary Nature Index on its remarkable achievements), due to lower birth rates. The government is trying to make postdoc positions more attractive, to attract international students and postdocs. It has also signed with the EU to become an associate member of the Horizon Europe program, hence potentially benefitting of ERC grants.
  • looking for the hottest temperature compatible with humans, alas soon in a theatre near you… (With a heatwave chamber that was driven from Brisbane to Sydney!) I did not understand, though, how the limit of 31⁰C as the minimal temperature at which a healthy, young person would die after six hours of exposure. But agreed with the immediate benefits of skin-wetting, which I use almost constantly on hot days and nights.
  • the false good idea of wood pellets, reminding me of a freezing August in Christchurch back in 2005!, as pellets (and other biomass energy) generate more carbon than coal, favour deforestation, impacts the health of communities surrounding facilities, and takes decades to reach neutral outcomes.
  • another possibly false good idea, floating and sustainable settlements in coastal regions threatened by sea rises. Not only floating cities are expensive to build, but they are more exposed to extreme weather events, compete with the preservation of wetlands and mangroves, and cannot function without adapted infrastructure, from water and sewage treatment to means of transportation, and enough nearby services.
  • the ERROR project that pays for spotting mistakes in published papers, developed by the Universities of Bern and Leipzig. ERROR stands for Estimating the Reliability and Robustness of Research. At 2,500 Swiss francs per paper, this is hardly sustainable…
  • the problem of artificial neural networks losing plasticity in continual-learning settings and a potential solution via back-propagation.