Earth’s oceans, climate, and ecosystems have never been static. From the iron-rich green waters of ancient Earth to the blue ...

The Earth's oceans used to be green — and could one day turn purple, scientists say. Opinion. By Cédric M. John published 13 April 2025 Earth's oceans could one day turn purple.

Chlorophyll gives plants their green colour. Blue-green algae are peculiar because they carry the common chlorophyll pigment, but also a second pigment called phycoerythrobilin (PEB).

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green ...

Almost certainly, the colour of the oceans changed gradually during this period and potentially oscillated. This could explain why blue-green algae evolved both forms of photosynthetic pigments.

Earth’s oceans used to be green, and they could turn purple next. What I think purple oceans might look like, generated with AI. Dall-E. View 2 Images 1 / 2.

Earth's oceans can again become a different colour as the Sun grows old, reminding us that everything changes with time. first published: Apr 16, 2025 02:34 pm Discover the latest Business News ...

A lot can change in a year for Earth’s forests and vegetation, as springtime and rainy seasons can bring new growth, while ...

At Earth Day on the Green, Sunrise Newark brought pH strips and invited attendees to test the pH levels of their water bottles while checking for harmful chemicals like lead and mercury. “We want to ...

Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese researchers have made a comp Tuesday, 02 January 2024 12:17 GMT ...

Pale green dot. The oceans were likely once a vibrant green color between 3.8 and 1.8 billion years ago, according to a study published in the journal Nature Ecology & Evolution.During this period ...