Ian Sample

Ian Sample has been a science correspondent for the Guardian since 2003. Before that, he was a journalist at New Scientist and worked at the Institute of Physics as a journal editor. He has a PhD in biomedical materials from Queen Mary's, University of London.

A major Greenland glacier is collapsing

Scientists say that the melting Zachariae Isstrom glacier may raise sea levels by 1.6 feet.

Earth-cooling schemes need global sign-off, researchers say

Radical geoengineering projects could have disastrous impacts on the world's most vulnerable people, raising the need for global oversight.