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Legal lead levels in US tap water may harm people with kidney disease

15 July 2021

Even very low levels of lead in drinking water may be linked to negative health effects in people with advanced kidney disease, a study of people in the US has found


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Uber and Lyft operating in US cities linked to rises in car ownership

6 January 2021

When ride-sharing companies including Uber and Lyft begin operating in a city, there is a slight increase in car ownership on average, a study of US urban areas suggests


San Francisco

Wealthy US cities struggle to provide running water for all residents

2 November 2020

Growing levels of income equality in US cities are leaving some residents without running water – even in wealthy metropolitan areas including San Francisco


Hawaii volcano is causing havoc and will spew lava for days

Hawaii volcano is causing havoc and will spew lava for days

8 May 2018

The Kilauea volcano is unlikely to erupt explosively, but it will probably keep pumping out devastating lava for many days to come


Parts of San Francisco are sinking faster than the sea is rising

Parts of San Francisco are sinking faster than the sea is rising

7 March 2018

Rising seas are already boosting the flood risk in places like San Francisco, but the problem is even worse than that because land is also subsiding


Florida suffers coast-to-coast battering by Hurricane Irma

Florida suffers coast-to-coast battering by Hurricane Irma

11 September 2017

After striking the Caribbean islands and leaving several close to uninhabitable, Hurricane Irma has made landfall in Florida and caused untold damage


Immigrant protections have halved kids’ mental health problems

Immigrant protections have halved kids’ mental health problems

31 August 2017

A programme that protects some US immigrants from deportation has reduced anxiety disorders in their children. But Donald Trump may scrap the scheme next week


Meet the turtles surviving an invasion of enormous tractors

Meet the turtles surviving an invasion of enormous tractors

19 August 2017

The eastern painted turtles must now live among enormous, noisy machinery – and studying them is offering clues to how animals survive alongside heavy industry


How US diplomats may have been attacked by sonic weapons in Cuba

How US diplomats may have been attacked by sonic weapons in Cuba

15 August 2017

Acoustic weapons are shrouded in mystery - now, US and Canadian diplomats seem to be suffering from the symptoms of an attack. Here's what could have happened


LA’s endangered pumas to be saved by a $60m bridge over highway

LA’s endangered pumas to be saved by a $60m bridge over highway

21 June 2017

Pumas in Santa Monica are trapped in small areas bisected by big roads, on which many die – but an ambitious wildlife crossing promises to change that


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