Gases used in anaesthetic in are stored in the Earth 's atmopshere . The gases - desflurane , isoflurane and nitrogen - have a greenhouse effect that is several times more potent than carbon dioxide , say nitrogen . New study finds their concentrations are relatively low but are stable . Scientists require hospitals to find more environmentally friendly solutions .
Gases used in anaesthetic in are accumulating in the Earth 's atmopshere . The gases - desflurane , isoflurane and sevoflurane - have a greenhouse effect that is 2,500 times more potent than carbon dioxide , say scientists . New study finds their concentrations are relatively low but are increasing . Scientists urge hospitals to find more environmentally friendly alternatives .