Climate Action
What is Climate Action? Climate Action is humanity's efforts to reduce greenhouse gas emissions and enhance our planet's resilience against climate change. From adaptation to mitigation, at The Optimist Daily you will learn about the most recent positive news stories and solutions targeting climate change and other environmental issues.
How one small device is solving the apartment solar access problem
BY THE OPTIMIST DAILY EDITORIAL TEAM An Australian device that splits rooftop solar power across an entire apartment building just won the country's top design honor. Melbourne-based Allume Energy took the 2026 Australian Good Design Award of the Year for its SolShare system, which its creators Read More...
How a floating shade can help coral survive a marine heatwave
BY THE OPTIMIST DAILY EDITORIAL TEAM When divers installed floating shade structures over 20 colonies of brain coral in the lower Florida Keys in August 2024, the corals underneath began recovering their color. The 20 colonies left unprotected grew paler through the hottest stretch of the Read More...
Australia sets a new renewable energy record, with rooftop solar leading the way
BY THE OPTIMIST DAILY EDITORIAL TEAM On Saturday, September 22, solar and wind met 80.4 percent of demand on Australia's national electricity market, with the grid covering the eastern states, South Australia, and the Australian Capital Territory. For about 30 minutes around lunchtime, rooftop Read More...
Berlin mapped 900,000 street trees. Now 12,000 people water them.
BY THE OPTIMIST DAILY EDITORIAL TEAM Amanda Gläser-Bligh named her street tree Linda. Linda is a linden, eight years old, growing outside Gläser-Bligh's apartment building in Charlottenburg, and once a week during Berlin's hot months, Gläser-Bligh makes a couple of trips up and down the Read More...
London's Oxford Street gets fully pedestrianized this month: here's what that means
BY THE OPTIMIST DAILY EDITORIAL TEAM Oxford Street, one of the busiest shopping streets in the world, goes traffic-free on October 26. London Mayor Sadiq Khan announced the closure of the stretch from Orchard Street to Great Portland Street, nearly a kilometer (just under half a mile) through Read More...
How Argentina's battery-powered Tren Solar is recharging an ancient Andean route
BY THE OPTIMIST DAILY EDITORIAL TEAM There are places where the land itself seems to generate energy. The Quebrada de Humahuaca in Jujuy province, in Argentina's far northwest, is one of them. At altitude, in clear desert air, the valley gets solar radiation that would be hard to match anywhere Read More...
Athens' former airport is becoming Europe's largest coastal urban park
BY THE OPTIMIST DAILY EDITORIAL TEAM Two million square meters of former airport land in the southern suburbs of Athens are being converted into The Ellinikon Park. The park is designed to actively lower surrounding air temperatures, process 100 percent of its own rainfall on site, and keep more Read More...
Ethiopia's Green Legacy Initiative is turning citizens into foresters
BY THE OPTIMIST DAILY EDITORIAL TEAM For most of the past century, Ethiopia was losing its forests. From the turn of the millennium to 2025, the country shed 560,000 hectares, about 2,160 square miles, of tree cover to agriculture, logging, and charcoal fuel. Then the government launched the Read More...
From 2.6% to 97%: how South Korea eliminated food waste and what NYC can learn
BY THE OPTIMIST DAILY EDITORIAL TEAM In Yeouido, Seoul, Seunghwan Hong spends less than a minute dropping off his food scraps. He taps a card, the lid opens, and the bin logs the weight. Whatever he throws in, he pays for. South Korea's food waste recycling rate was 2.6 percent in 1996. In Read More...
How Reefvive is rebuilding coral reefs from discarded oyster shells
BY THE OPTIMIST DAILY EDITORIAL TEAM Most artificial reef structures are built from concrete. Concrete is smooth, and smooth surfaces give young coral little to grip. A team of students at National Taiwan Normal University built their version from something else entirely: ground oyster shells Read More...