Growing evidence suggests that the extinction of the dinosaurs involved profound, complex and interconnected changes to the global systems that support life. Much like we are facing today.
The reason we have seasons is because, during its journey around the Sun, the Earth is tilted.
Mountains keep growing and growing and growing for many millions of years until they are so heavy that they can no longer grow taller, only wider.
Photo by Jeff Finley on Unsplash
When I was little, geologists worked out Earth’s surface was made of pieces, like a giant puzzle. Those pieces, called “tectonic plates”, move and bump into each other and mountains form.
The United Nations says people “left behind” include those vulnerable to the effects of climate change, but aren’t the furthest behind those damaging the environment? Here, a man rides a bicycle through a devastated Homs, Syria. Numerous studies say climate change was a factor in record-setting drought, one of several causes of the country’s civil war.
AP Photo/Dusan Vranic
The United Nations Declaration on sustainable development stresses “leaving no-one behind,” but what about the factors that cause many to be behind in the first place?
Rapid environmental decline is a major threat, yet education is not mobilised to empower children. Fortunately, many initiatives explore how to make students actors of the ecological transition.
Infrared and visible light satellite data is recoloured to produce striking images of Australia.
Grayson Cooke
Despite the American Indian Religious Freedom Act, passed by the US Congress 40 years ago, Native Americans still struggle to protect public lands where they practice their religions.
Earth experiences constant volcanic activity - here’s Indonesia’s Mount Anak Krakatau (Child of Krakatoa) photographed in July 2018.
EPA/AAP
Compared to Earth, more “oomph” is required to bring magma to the surface of Mars, and this is probably why we haven’t seen any recent eruptions on the red planet.
China’s Tiangong-1 space station is hurtling around Earth out of control and about to come crashing down. It’s just one of thousands of pieces of space junk left orbiting our planet.
The extinction of dinosaurs is one of the many periods of mass extinctions on earth.
www.shutterstrock.com/Jaroslav Moravcik
Scientists believe since 2010 we have entered the sixth period of mass extinction. CO2 emissions will change the lives of plants and animals in the next three to four decades.