Deadly South Asia heatwave a once-in-3,000-year event before climate change, experts say

• The heatwave, which has claimed at least 90 lives across India and Pakistan in recent months, was made 30 times more likely by climate change, scientists said
• ‘This is a sign of things to come,’ said one of the authors of the World Weather Attribution study, adding it could occur every 5 years if warming continues