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Science Talk: Climate X factor
Arctic-like cold in US, heatwave in Australia: Humanity must face up to existential threat
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Benjamin Horton
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The X factor is that undefinable something that makes an individual or a phenomenon stand out.
The start of this year has been marked by climate X factors, including staggering Arctic-like temperatures in the mid-latitudes, sweltering heat in Australia and record-breaking rainfall.
