Credit: iStock/Marcus Millo The global population could reach 10 billion by 2050; explosive population growth is contributing to a broad array of other challenges for the planet. Without immediate and drastic intervention, humans face a “ghastly future” — including declining health, climate devastation, tens of millions of environmental migrants and more pandemics — in the next several decades, according to an international team of 17 prominent scientists. In a paper published Jan. 13 in the journal Frontiers in Conservation Science, the researchers cite more than 150 scientific studi...