A new study has found that substantial deforestation in the Brazilian Amazon is fuelling the spread of malaria. Researchers from the United States and Brazil analysed data from 2003 to 2022 and discovered that a 1% increase in the monthly deforestation rate results in an average rise of 6.3% in malaria cases just one month later. The study, published on Monday in the Proceedings of the US National Academy of Sciences (PNAS), shows that the effect of deforestation on malaria risk varies from state to state. However, the overall findings indicate a clear link between deforestation and more malar…