Sigma Earth

Sigma Earth is an independent environmental and sustainability publication running since 2023, with more than 7,200 published articles across climate science, renewable energy, ESG and corporate sustainability, environmental policy, conservation and green technology. Alongside the main publication, we operate three sister properties on the same domain: a sustainability job board, an eco-products and services directory, and an environmental courses platform. Content is available in eleven languages, and readers come primarily from Italy, Germany, the United States, India, France and Brazil. We accept sponsored and guest articles that are genuinely useful to that readership. Every placement is reviewed editorially before publication, carries a sponsored-content disclosure where applicable, and remains live permanently.