The Brazilian government said on Thursday that deforestation in its portion of the Amazon rainforest has fallen for the fourth consecutive year. Brazil is home to the largest part of the Amazon River system, which spans nine countries and is considered crucial in the fight against climate change. According to the National Institute for Space Research (INPE), which uses satellites to track forest cover, 5,796 square kilometers (2,238 square miles) — an area nearly four times the size of Greater