Life and death on the Atlantic migrant route. Plus, is it too late to halt global heating?
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When we think of Europe’s migrant crisis, much of our attention understandably focuses on Mediterranean sea crossings from North Africa. But the Guardian Weekly’s big story this week casts light on another deadly route, from Africa’s western coast to the Spanish Atlantic territory of the Canary Islands. While official death rates are comparatively low, concerns are growing that undocumented fatalities on this extremely dangerous crossing could be many times higher. Sam Jones reports from Gran Canaria.

As extreme weather-fuelled wildfires continued to blaze in several parts of the world this week, a major new report from hundreds of top scientists laid bare the severe extent of our damage to the Earth’s climate and the disaster looming if the slim chance to avert global heating above 1.5C is not grasped. Environment editor Damian Carrington analyses what the IPCC report means, while on our Opinion pages, the UK government’s chief scientific adviser, Patrick Vallance, warns starkly that only a complete transformation of our societies can now arrest the warming process.