No collapswashing

Researchers in Japan have developed a new material that allows solar cells to generate an amount of energy from sunlight that was previously thought impossible. The discovery, made by a team at Kyushu University, involves a special “spin-flip” emitter that can harvest energy from the Sun that is typically lost as heat. The breakthrough overcomes the long-standing limit of conventional solar cells to achieve an energy conversion efficiency of 130 per cent – opening up new possibilities for ultra-efficient solar panels.

The activist and author of Here Comes the Sun discusses rapid advances in solar and wind power and how the US ceded leadership in the sector to its main rival

Watchdog’s flagship report says rise in low-carbon electricity will make transition ‘inevitable’, despite Trump’s calls to carry on drilling

À travers le podcast « Sismique », Julien Devaureix enquête sur les transformations du monde. L’objectif : permettre à ses auditeurs de comprendre la complexité de ces transformations, pour qu’ils retrouvent du pouvoir d’agir à leur propre échelle.

A rule known as the endangerment finding requires the E.P.A. to regulate greenhouse gases. It has proved resilient against earlier attacks.

The only publication for climate action, covering the environment, biodiversity, net zero, renewable energy and regenerative approaches. It’s time for The New Climate.

En pleine polémique sur les PFAS, il a été question de la société Renewi ce lundi soir au conseil communal de Liège. Des données inquiétantes en matière de contamination aux PFAS ont en effet été révélées concernant les eaux de rejet de cette société de gestion de déchets installée à Wandre.

Sweden formally renounces EU net zero roadmap championed by the likes of Germany.

“Combustion is the problem – when you’re continuing to burn something, that’s not solving the problem,” says Prof Mark Jacobson. The Stanford University academic has a compelling pitch: the world can rapidly get 100% of its energy from renewable sources with, as the title of his new book says, “no miracles needed”. Wind, water and solar can provide plentiful and cheap power, he argues, ending the carbon emissions driving the climate crisis, slashing deadly air pollution and ensuring energy security. Carbon capture and storage, biofuels, new nuclear and other technologies are expensive wastes of time, he argues.

Eleven of the 20 largest economies got a C or worse on a renewable energy report card, which assessed their plans to reach net zero and their targets for producing and using renewable energy

France’s troubled nuclear fleet a bigger problem for Europe than Russia gas Giles Parkinson 5 August 2022 44 frederic-paulussen-LWnD8U2OReU-unsplash - optimised nuclear 669 Shares Share 669 Tweet Before Peter Dutton’s Coalition charge off into yet another inquiry into the merits of nuclear power, they might want to take a closer look at what’s happening in Europe, where the failure of France’s huge nuclear power plant fleet is causing bigger problems for EU power supplies than Russia’s withheld gas supply. France has been delivering just a fraction of its energy production potential in recent months, and overnight the situation got worse when French power producer EDF announced another three power plants would curtail output because of rising temperatures. Rivers have become too hot in the latest heatwave to be used to cool the reactors. The majority of France’s 56 nuclear reactors are currently throttled down or taken offline due to a combination of scheduled maintenance, erosion damage (worryingly, mostly a

La start-up belge Renewind a signé son premier contrat avec la copropriété de la tour Marius Renard, à Anderlecht. Il porte sur la fourniture et l’installation de 24 éoliennes de toiture.

The world is experiencing unprecedented fuel price increases, energy blackmail between countries, up to 7 million air pollution deaths per year worldwide and one climate-related disaster after another. Critics contend that a switch to renewable energy to solve these problems will create unstable electricity grids and drive prices up further. However, a new study from my research group at Stanford University concludes that these problems can be solved in each of the 145 countries we examined — without blackouts and at low cost using almost all existing technologies.

Countries should move from coal to renewable energy without shifting to gas as a “transition” fuel to save money, as high gas prices and market volatility have made the fossil fuel an expensive option, analysis has found. Natural gas has long been touted as a “transition” fuel for economies dependent on coal for their power needs, as it has lower carbon dioxide emissions than coal but requires similar centralised infrastructure, and gas-fired power stations take only a couple of years to build. Earlier this year, before Russia invaded Ukraine, the European Commission angered green campaigners by including gas as a “bridge” to clean energy in its guidebook for green investment.

SACRAMENTO -- Data from the California Energy Commission (CEC) shows that 59 percent of the state’s electricity came from renewable and zero-carbon sources in 2020. The CEC estimates that in 2020, 34.5 percent of the state’s retail electricity sales were served by Renewables Portfolio Standard (RPS)-eligible sources such as solar and wind. When sources of zero-carbon energy such as large hydroelectric generation and nuclear are included, 59 percent of the state’s retail electricity sales came from non-fossil fuel sources in 2020. In 2019, over 60 percent of the state’s electricity came from renewable and zero-carbon sources. The decrease in 2020 is due to decline in hydroelectric generation caused by severe drought, as well as pandemic-related delays to new renewable energy projects.

A group of leading international researchers have issued a stark new warning to governments that relying on technology alone will not be enough to address the growing climate emergency, saying that presumptions that economic growth can continue unchecked should be challenged.

As scientists gather online to finalize a long-awaited update on global climate research, recent extreme weather events across the globe highlight the need for more research on how it will play out, especially locally.

The list of extremes in just the last few weeks has been startling: Unprecedented rains followed by deadly flooding in central China and Europe. Temperatures of 120 Fahrenheit (49 Celsius) in Canada, and tropical heat in Finland and Ireland. The Siberian tundra ablaze. Monstrous U.S. wildfires, along with record drought across the U.S. West and parts of Brazil.

Louis Ledonne, membre du mouvement Renew Belgium, explique la nécessité pour "la communauté humaine de retrouver la capacité d'agir sur elle-même". Et propose des pistes pour y arriver.

A novel methodology is developed to dynamically assess the energy and material investments required over time to achieve the transition from fossil fuels to renewable energy sources in the electricity sector. The obtained results indicate that a fast transition achieving a 100% renewable electric system globally by 2060 consistent with the Green Growth narrative could decrease the EROI of the energy system from current ~12:1 to ~3:1 by the mid-century, stabilizing thereafter at ~5:1. These EROI levels are well below the thresholds identified in the literature required to sustain industrial complex societies. Moreover, this transition could drive a substantial re-materialization of the economy, exacerbating risk availability in the future for some minerals. Hence, the results obtained put into question the consistence and viability of the Green Growth narrative.