In some of these cases, governments may successfully defend their emission-reducing activities in trade court. But in too many others, they can be relied upon to cave in early, not wanting to appear anti–free trade (which is likely what is behind Ontario’s quiet acceptance of the WTO’s ruling against its green energy plan). These challenges aren’t killing renewable energy; in the U.S. and China, for instance, the solar market continues to grow impressively. But it is not happening fast enough. And the legal uncertainty that now surrounds some of the most significant green energy programs in
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