Whether you call it a hiatus or not, it seems to me that it's over such a relatively short period that it can't be construed as more than a blip in the overall trend. Future history may prove otherwise, but it won't be clear for a long time yet.
However, regardless of one's beliefs on man-made climate change, there's no doubt that we need to take steps to reduce the amount of pollution we're dumping on the planet. The food chain is being damaged in plenty of other ways too.
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