Can sensor technology stop a wildfire before it starts?

The US Department of Homeland Security is trialling chemical sensors that detect the first whiff of smoke in the air and alert fire crews while a potential blaze is still smouldering

​The US Department of Homeland Security is trialling chemical sensors that detect the first whiff of smoke in the air and alert fire crews while a potential blaze is still smouldering The US Department of Homeland Security is trialling chemical sensors that detect the first whiff of smoke in the air and alert fire crews while a potential blaze is still smouldering