L uiz Inácio Lula da Silva’s win in Brazil’s presidential election is a triumph for him, his country and the world. The 80-year-old incumbent snatched victory from the jaws of defeat, blocked the rise of the far right and saved the planetary air-conditioning system of the Amazon from irreparable destruction . Known universally as Lula, he made history by becoming the first candidate to win a presidential run-off after finishing second in the opening round. In triumphing against Flávio Bolsonaro, the leftist stopped what could have been the most dangerous consolidation of authoritarian rule in Brazil since military rule ended. A Bolsonaro presidency could have used a rightwing Congress to extend presidential terms and pack the supreme court, entrenching power for generations.

Lula seemed to have been energised by his first-round defeat by Mr Bolsonaro. The three-time president initially pitted his extraordinary life and record against a 45-year-old senator married to controversy .…