O ver the weekend, as I struggled to remove the stubborn stump of a long-dead pomelo tree in our garden, I found myself turning to an old, almost forgotten ally—kerosene. As the flames flickered ...

Over the weekend, as I struggled to remove the stubborn stump of a long-dead pomelo tree in our garden, I found myself turning to an old, almost forgotten ally—kerosene. As the flames flickered and ...