Together with the oceans, they are one of the two most important carbon sinks, due to their capacity to store carbon in the soil and in tree biomass. As such, promoting fast-growing trees could ...

In southern Iraq, archaeologists have excavated a remarkable collection of carved clay tablets—ancient records of Akkadia, the world’s oldest empire. Marked with the administrative details of ...

The math concept hidden in this tree art — geometric shapes known as fractals — is apparent in branching patterns in nature and may be key to humans’ ability to recognize such artwork as ...