Wind energy, the medication with side effects

Wind energy is renewable. Kinetic energy from moving air, converted into electricity, no fuel burned, no smoke. Compared to fossil generation it's a genuine improvement, and that's not in serious dispute.

But it isn't clean the way the marketing suggests. The blades themselves are the actual headache in this sector. Globally, an estimated 43 million tonnes of wind turbine blade waste will exist by 2050, most of it heading straight for landfill. China accounts for roughly 40% of that, Europe 25%, the United States 16%, the rest of the world making up what's left. The annual rate is projected to climb toward 800,000 tonnes a year by 2050. These aren't fringe estimates, they trace back to peer reviewed research and have since been echoed by industry analysts.

The reason is simple and stubborn. Blades are built from composite materials, glass or carbon fibre bonded into resin, precisely because that combination is strong and light enough to survive decades of relentless stress. The same properties that make them excellent at their job make them genuinely difficult to take apart afterwards. There's no easy way to unbond a composite once it's cured. A handful of projects have found second lives for old blades, turned into bicycle shelters, pedestrian bridges, the odd piece of public furniture, and those projects are worth applauding. But they're a rounding error against 43 million tonnes.

I think of it like medication with real side effects. The condition is serious enough that refusing treatment over the side effects would be the worse choice. But pretending those side effects don't exist doesn't make anyone healthier. It just means nobody's actually managing them.

Wind energy deserves that same clear-eyed treatment. It's meaningfully better than what it's replacing. It is not yet the clean solution it's often sold as. Both of those are true at the same time, and treating the second one as an attack on the first helps nobody, least of all the transition itself.