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When Cop30 convened in Belém, deep inside the Amazon, the world’s attention turned once again to negotiations, emissions pledges and political manoeuvring. The global stage was set against one of Earth’s most biodiverse landscapes and some of its most vulnerable communities, yet the conversation still leaned heavily toward geopolitics rather…

The next global volcanic disaster is more likely to come from volcanoes that appear dormant and are barely monitored than from the likes of famous volcanoes such as Etna in Sicily or Yellowstone in the US.

When climate change is discussed, whether at UN climate summits, in company boardrooms or in the media, the focus is often on mitigation (cutting greenhouse gas emissions to achieve net zero). Adaptation, the practical steps to prepare for the consequences of a changing climate, receives far less attention in the…

In 2017, a new global treaty was meant to bring mercury pollution under control. But three decades of data from UK harbour porpoises show mercury is still increasing, and is linked to a higher risk of dying from infectious disease.

For over 200 years, native oysters (Ostrea edulis) have been absent in Dublin Bay. Once abundant along the Irish coast, they thrived in the sheltered estuaries and tidal flats that shaped the city’s maritime life.

In a conversation with Luciana Julião, environment editor at The Conversation Brasil, during COP30 in Belém, Fiocruz researcher and environmental health specialist Sandra Hacon explained why the integration of climate, environment and health has guided her research for two decades. Hacon has a background in biology and ecology and is…

A US$125 billion rainforest fund is being hailed as a flagship announcement from the 2025 UN climate summit in Belém, Brazil. The goal is noble: this is essentially a trust fund that will pay countries to keep their tropical forests standing. But its core idea was tried 30 years ago,…

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Delhi: 442. Lahore: 334. Beijing: 16. These are the levels of PM 2.5, one of the principle measures for air pollution, on November 19.