More federal funding is needed to help prevent wildfires in America, officials were told - with experts warning current policies have left forests "explosive".
It comes after dozens of blazes tore through western US states, torching 1.7 million acres (685,000 hectares) of land.
Fire experts addressed a meeting of the US Senate's energy committee in Seattle, Washington, which in recent weeks has seen the largest cluster of deadly fires on record.
Western Washington University's chairman of environmental studies, Michael Medler, told the meeting that increasing use of controlled burns and creating greater barriers between developments and forests were key to cutting the risk of it happening again in future.
To put it bluntly, the last century of fire policies have left our forests explosive.
Thousands of firefighters are still battling more than 60 large fires.
Thirteen have been killed on duty so far this year.
Conservationists and anglers have joined forces to launch a legal challenge against the government, accusing ministers of failing to protect England's "most precious" rivers, lakes and coastal areas from pollution.
WWF UK, the Angling Trust and Fish Legal have been granted permission by the High Court to pursue their legal challenge, which they say they hope will protect waterways from further damage.
They are demanding a judicial review, claiming that the Department for Environment, Food and Rural Affairs (Defra) and the Environment Agency are failing in their legal duty to take the necessary action.
They are particularly concerned about habitats known as Natura 2000 sites, including "national treasures" such as Poole Harbour and the rivers Avon, Wye & Eden.
They say agricultural pollution in these areas is causing harm, with soils carrying nutrients and pesticides being allowed to wash into the waters.
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