We are not here to advocate for the arms industry or its CEOs, writes STEVE HANDFORD, and that means we must take a stand against the government’s spending on war
The new normal?
Heatwaves show the difficulty of assessing extreme weather events in a changing climate, write ROX MIDDLETON, LIAM SHAW and JOEL HELLEWELL

AT THE end of March the Met Office announced that it was increasing the heatwave threshold for eight English counties by one degree Celsius. It attributed this change to increasing global temperatures due to climate change.
A heatwave is defined as at least three consecutive days with maximum temperatures meeting or exceeding a threshold.
Within Britain, the exact threshold varies across the counties due to their different average temperatures. Counties with higher average temperatures will have a higher threshold required for a heatwave to be declared.
More from this author

A small Japanese trial has reported some positive results for stem cell therapy to treat spinal-cord injuries

Man-made canals like Panama and Suez face unprecedented challenges from extreme weather patterns and geopolitical tensions that reveal the fragility of our global trade networks, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT

It’s sunny times for the solar industry which is expected to continue to grow rapidly — but there are still major environmental issues with how solar cells are made, explain ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT

Fraud in Alzheimer’s research raises difficult questions about the current state of science, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT