NYC mayor vows action on anti-Semitism 'crisis' after stabbing

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New York Mayor Bill de Blasio has announced a series of measures to tackle a "crisis" of anti-Semitic attacks, following a mass stabbing. Soaring temperatures and strong winds have sparked new fires in the Australian state of Victoria, where tens of thousands of people were urged to flee. Ugandan innovator Paul Matovu is behind a verticle farming solution which aims to tackle the country's shortage of arable land.