While there are still some loud shrill voices denying the reality of climate change, Jamais Cascio thinks we may have finally reached the tipping point where such denialism is irredeemably exposed as obfuscation by those with vested interests – I sincerely hope he’s right.

That said, even advocates for environmental issues should be prepared to question the accepted dogmas; for example, a detailed study seems to indicate that the “eat local” philosophy may be misguided by the best of intentions, and that the long distance transportation of foodstuffs may actually have a smaller footprint than locally grown equivalents when other factors are introduced into the equation. [Brian Dunbar]