Sustainability News for October 20th: Introduction
Welcome to the Sustainability News for October 20th, where we highlight the positive progress that often slips past the headlines. We know that change is happening all around us,.
From supermarkets protecting oceans, to renewable energy outcompeting nuclear, and scientists making hydrogen from thin air. This week’s stories prove solutions are being built today.
Keep reading to discover how innovation and commitment are shaping a brighter future.
Waitrose Pilots Science Based Targets for Oceans
The first story for the Sustainability News for October 20th sees Waitrose be among the first five organisations globally to pilot science-based targets for ocean conservation. Announced at Climate Action Week in New York, the initiative is led by the Science Based Targets Network and focuses on seafood supply chains. Other pilot members include Orkla Foods Sweden, Seatopia, Musholm and the Danish Pelagic Producers Organisation.
Musholm’s Teis Volstrup said the process is “already delivering real value, giving us sharper insights and helping align our business with what the ocean needs.” Orkla’s Lars Lundahl added it would strengthen risk assessments across value chains.
Waitrose is targeting 100 percent of its own brand fish and shellfish from verified responsible sources by the end of 2025. The supermarket has already cut ties with suppliers linked to shark finning, whaling and the culling of seals and walruses.
These pilots are the first step toward verified ocean targets. By grounding seafood supply chains in science, they provide a credible path to restoring ecosystems while meeting global food demands.
Data Centres Cheaper to Run with Renewable Energy
A new study from the Centre for Net Zero shows renewable microgrids could power UK data centres up to 43 percent more cheaply than nuclear small modular reactors. With 523 centres already operating, demand is set to soar as artificial intelligence grows.
The study compared nuclear reactors with renewable microgrids combining offshore wind, solar, storage and gas backup. Renewables consistently outperformed nuclear in cost and build time, with savings of over 40 percent and construction possible in half the time.
The research suggests renewable microgrids could provide around 80 percent of a data centre’s annual power needs, with gas balancing shortfalls. As battery costs fall, reliance on gas will decline further, strengthening the environmental case.
Data centres currently draw 40 percent of their power from fossil fuels. Renewable microgrids, if deployed quickly, could cut this dependency while lowering bills. For an industry central to the digital economy, renewables are already the most practical and cost-effective choice.
China’s Solar System Produces Hydrogen from Air Moisture
Researchers in China have unveiled a solar powered system that generates hydrogen directly from air moisture, offering a breakthrough for clean fuel in water scarce regions. The project, led by Professor Yin Huajie of the Chinese Academy of Sciences, combines atmospheric water harvesting with proton exchange membrane electrolysis.
Unlike existing methods that rely on purified water, this design captures moisture using porous carbon, evaporates it with solar heat and feeds it into an electrolyser. The system has produced 300 millilitres of hydrogen per hour, even in humidity as low as 20 percent.
Laboratory and field tests confirmed stability and cycle efficiency, with no need for external water or electricity. It is self sustaining, zero carbon and can run in arid conditions where conventional hydrogen systems fail.
Hydrogen is seen as a crucial clean fuel for vehicles, industries and energy storage. By removing water constraints, this approach opens possibilities for global expansion. For communities in dry regions, it could mean access to clean energy from nothing more than sunlight and air a great way to finish the Sustainability News for October 20th.
Sustainability News for October 20th: Wrap Up
The Sustainability News for October 20th showcases the power of science and innovation. From Waitrose piloting ocean targets to renewable powered data centres and hydrogen from the air, the message is clear: solutions are here.
At Play It Green, our community proves that progress is not a distant hope but a reality we can grow together. Every step we take, reducing footprints, repairing nature, and regiving to good causes, adds momentum to a brighter and greener future.
Let’s keep the energy alive and make this year one of change worth celebrating.
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