After four years of rising destruction in Brazil’s Amazon, deforestation dropped by 33.6% during the first six months of President Luiz Inácio Lula da Silva’s term, according to new government satellite data.

From January to June the rainforest had alerts covering 2,650 sq km (1,023 sq miles), down from 4,000 sq km during the same period last year under former president Jair Bolsonaro. This year’s data includes a 41% plunge in alerts for June, which marks the start of the dry season when deforestation tends to jump.