It isn’t something we think about very often, but dust is a connector of ecosystems around the world. Dust carries various minerals and nutrients to places where such things are in very scarce supply. This includes the oceans of the world as well as many forests and other ecosystems. For example, phosphorus-bearing dust carried from the Gobi Desert is essential to the growth of giant redwoods in California’s Sierra Mountains.
The United Nations declared 2016 to be the International Year of Pulses. Pulses, which are also known as grain legumes, are a group of 12 crops that includes dry beans, dry peas, chickpeas and lentils. They are high in protein as well as fiber and various vitamins. Pulse crops are highly sustainable and require much less water than many other food crops. So there is a real effort underway to promote their production as part of improving food security around the world.