More than a third of Americans endure summers at least 1.5C hotter than the 1895 average, analysis shows

An onslaught of record-breaking heat across much of the US has provided yet another indicator of a longer-term issue – summers are progressively getting hotter for Americans in all corners of the country.

The US climate scientist Brian Brettschneider has analysed almost 130 years of federal data and it shows that from New York to Los Angeles there are hotspots where summers have got significantly hotter in that time compared with the average levels of warming brought about by the burning of fossil fuels.