By Gloria Dickie LONDON (Reuters) – Extreme weather events – from scorching heatwaves to unusually heavy downpours – have caused widespread upheaval across the globe this year, with thousands of people killed and millions more displaced. In the last three months, monsoon rains unleashed disastrous flooding in Bangladesh, and brutal heatwaves seared parts of South Asia and Europe. Meanwhile, prolonged drought has left millions on the brink of famine in East Africa. Much of this, scientists say, is what’s expected from climate change. On Tuesday, a team of climate scientists published a study ht…

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