Volatile gases conserved in diamonds found in ancient rocks indicate that the basic chemical composition of Earth’s atmosphere was laid down at least 2.7 billion years ago.
Focusing its energy on construction and permitting the Florence copper project in Arizona, the company said it is not in a position to advance Harmony for several years.
Wind-transported metal pollution from mining paired with activities linked to the tourism industry are causing concern to those that depend on the Khumbu Glacier melt.