The Olympics are usually an environmental disaster. Can Paris be the exception?
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Organisers of the Paris Olympics have promised the event will be "historic for the climate". As part of its climate strategy, the committee established a goal of generating no more than half the planet-warming gases produced by previous Summer Games in London and Rio, pledging to slash emissions in three main categories: construction, transportation and operations. So how is Paris faring, compared to its predecessors? And can a planetary event like the Olympics ever be sustainable?