
C40 cities have built a framework for climate action, but which ones are actually delivering?
a closer look at emissions trajectories reveals a smaller group of cities that have turned those mechanisms into measurable reductions.
189 stories
carbon is a nonmetallic, solid chemical element, common of all known life. it is the second most abundant element in the human body by mass, and the fourth most abundant one in the universe after hydrogen, helium, and oxygen. the uses of carbon are extremely varied, as its atoms can bond to form allotropes such as graphite, diamond, and charcoal. carbon exists naturally in the earth's atmosphere in combination with oxygen in carbon dioxide, making our planet warm enough to live on. however, since the industrial revolution – and the burning of fossil fuels such as coal, natural gas, and oil – humanity's thirst for energy has substantially disturbed the planet's natural greenhouse effect, causing higher temperatures and the ongoing climate crisis. a global effort is currently taking place to prevent the worst effects of rapid climate change. the paris agreement, adopted by 196 parties at COP 21 on december 2015, seeks to achieve a climate neutral world by mid-century.
what strategies are individuals, companies, organizations, cities, and countries implementing to achieve carbon neutrality? here, designboom publishes the latest news, as well as design, architecture and technology projects that aim to be low-carbon, carbon-neutral, climate positive and net-zero.

a closer look at emissions trajectories reveals a smaller group of cities that have turned those mechanisms into measurable reductions.






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International Furniture Design Competition Asahikawa [IFDA] deadline: december 11th, 2026