Harriet Williams

Bristol's decision to trial vinegar as a weedkiller in place of glyphosate certainly grabbed headline-writers' imaginations, writes Harriet Williams. But with a wide choice of proven chemical-free weed control strategies available, might this experiment be 'set up to fail'?

Recent riots and looting across the streets of England is a mini-tragedy of the commons, says Harriet Williams. If only some of the evironmental damage we cause everyday was as immediately visible and socially unacceptable

While the inside of COP15 may be the preserve of those with power and influence, the queue to get into the Bella Center is where the rich and famous rub shoulders with the rank and file...

There's still money to be had for good environmental projects, but it's a fraction of what's being spent in other areas, says Harriet Williams

A hub of invention, why can't the automobile industry get a handle on low-carbon cars? The answer's in the profit margins - which is why the credit crunch offers hope for the future, says Harriet Williams

Forest carbon finance, through avoided deforestation, is at best a sticking plaster solution that fails to get to the roots of the problem, argues Harriet Williams