Last week, Blackrock wrote a letter to CEOs of the companies Blackrock invests in and another to the company’s clients. Both these letters discuss in detail the various approaches that Blackrock intends to take to climate risk, sustainable reporting and a variety of other related issues. But the number of times deforestation gets a mention in either letter? Zero. This omission is surprising. Deforestation is a crucial factor in climate change. It accounts for nearly 20% of all greenhouse gas emissions — more than the world’s entire transport sector.