European colonizers' mass killing of Native Americans caused change in climate: study - The Hill

European colonizers who arrived in the Americas caused death and disease to the point that it sparked what some have called the first major human-induced change in the Earth’s climate, a new study has found.....
https://thehill.com/blogs/blog-briefing-room/news/428103-european-colonizerss-mass-slaughter-of-native-americans-caused

Elon Musk just did a Reddit AMA about his plans to colonise Mars: Here are the highlights -- International Business Times, UK Edition

Last month, Musk unveiled concrete plans including spaceships and the entire roadmap that outlines details as to how and when humans will set foot on the red planet. ....
http://www.ibtimes.co.uk/elon-musk-just-did-reddit-ama-about-his-plans-colonise-mars-here-are-highlights-1643196