Cientistas descobrem fonte natural de hidrogênio em rochas canadenses

20 de maio de 2026

Reportado por IA

Pesquisadores descobriram que rochas antigas sob Ontário estão produzindo naturalmente gás hidrogênio em quantidades mensuráveis. A descoberta pode oferecer uma nova fonte doméstica de energia limpa para o Canadá.

Cientistas da Universidade de Toronto e da Universidade de Ottawa mediram o hidrogênio que flui de poços de perfuração em uma mina ativa perto de Timmins. O gás escapa a uma taxa média de 0,008 toneladas por ano de cada poço e pode continuar por pelo menos uma década. Quando calculado para os quase 15.000 poços do local, o total chega a mais de 140 toneladas anualmente, o suficiente para abastecer mais de 400 residências a cada ano com 4,7 milhões de quilowatts de energia.

Scientists develop single-atom catalyst for CO2-to-methanol conversion

20 de março de 2026 Reportado por IA Imagem gerada por IA

Researchers at ETH Zurich have engineered a catalyst using isolated indium atoms on hafnium oxide to convert CO2 and hydrogen into methanol more efficiently than previous methods. This single-atom design maximizes metal use and enables clearer study of reaction mechanisms. The breakthrough could support sustainable chemical production if powered by renewables.

Lab tests show hydrogen can be made from rocks while storing CO2

Researchers have demonstrated in laboratory experiments that hydrogen can be produced from iron-rich rocks while simultaneously locking away carbon dioxide. The work, presented at a recent geoscience meeting, aims to combine clean energy generation with climate mitigation. Field trials are now being planned to test the approach at scale.

Greenland ice melt may release vast methane stores

14 de maio de 2026 Reportado por IA

New research shows that melting glaciers in Greenland could free large quantities of methane trapped as hydrates beneath the ice. Scientists warn this process, observed after the last ice age, may repeat as the climate warms.

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Scientists discover hidden underground structure beneath America

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Geothermal energy draws on fossil fuel workers' skills

Volcanic plume unexpectedly destroyed methane after 2022 eruption

Scientists have found that the 2022 eruption of an underwater volcano in the South Pacific triggered a chemical process that removed significant amounts of methane from the atmosphere. The discovery, detailed in a new study, shows how volcanic ash and seawater combined to break down the potent greenhouse gas.

Scientists develop sunlight method to convert plastic waste into hydrogen

04 de maio de 2026 Reportado por IA

Researchers at the University of Adelaide have devised a solar-powered process to transform plastic waste into clean hydrogen fuel and other chemicals. The technique, known as solar-driven photoreforming, uses sunlight and photocatalysts to break down plastics at low temperatures. Early experiments show promising hydrogen yields and system stability.

sábado, 16 de maio de 2026, 09:49h