London Mayor Sadiq Khan has urged Londoners to create firebreakers to protect their homes, while a new map has highlighted the areas of London most at risk from wildfire threats. The second highest borough at risk is Hounslow, to the West of the capital. Latest Videos From Shortlist Watch full video here:Just over 11% of Havering’s land was analysed as being at high risk or very high risk of wildfire, with Hounslow slightly behind it at 10%. The borough with the third highest risk was Ealing, with just over 9% of the borough at high or very high risk of wildfires. At around half the wildfire risk as the boroughs with the highest dangers was Sutton and Greenwich, both on 4.84%.