We Traced the Forever Chemicals Getting Into Ocean Ecosystems – the Conversation

Biscayne Bay (by Shaun Wolfe, National Park Service, public domain).

PFAS, the “forever chemicals” that have been raising health concerns across the country, are not just a problem in drinking water. As these chemicals leach out of failing septic systems and landfills and wash off airport runways and farm fields, they can end up in streams that ultimately discharge into ocean ecosystems where fish, dolphins, manatees, sharks and other marine species live…

Why does nature create patterns? – the Conversation

Giants Causeway, Northern Ireland (by llee_wu CC BY-ND 2.0 DEED via Flickr).

The reason patterns often appear in nature is simple: The same basic physical or chemical processes occur in many patterned substances and organisms as they form. Whether in plants and animals or rocks, foams and ice crystals, the intricate patterns that happen in nature come down to what’s happening at the level of atoms and molecules…

How deep is the ocean? – the Conversation

Mother humpback and calf (courtesy of NOAA Photo Library CC BY 2.0 via Flickr).

If you wanted to measure the depth of a pool or lake, you could tie a weight to a string, lower it to the bottom, then pull it up and measure the wet part of the string. In the ocean you would need a rope thousands of feet long. In 1872 the HMS Challenger, a British Navy ship, set sail to learn about the ocean, including its depth. It carried 181 miles (291 kilometers) of rope…

Where does beach sand come from? – the Conversation

Pebbles on the Beach (by Susanne Nilsson CC BY-SA 2.0 via Flickr).

Question from Sly M., age 6, Cambridge, Massachusetts…
There’s more to beach sand than meets the eye. It has stories to tell about the land, and an epic journey to the sea. That’s because mountains end their lives as sand on beaches….

Hurricanes push heat deeper into the ocean than scientists realized, boosting long-term ocean warming, new research shows – the Conversation

Thermal (heat) image view of Category 5 Hurricane Maria in 2017, as seen by NASA’s Terra satellite. Yellow and orange are the warm ocean waters, and blue and white are the hurricane’s tall, cool cloud tops (courtesy of NASA, public domain via NASA earth observatory).

Seven years ago an exceptionally strong El Niño took hold in the Pacific Ocean, triggering a cascade of damaging changes to the world’s weather. Indonesia was plunged into a deep drought that fueled exceptional wildfires, while heavy rains inundated villages and farmers’ fields in parts of the Horn of Africa. The event also helped make 2016 the planet’s hottest year on record. Now El Niño is back…

My art uses plastic recovered from beaches around the world to understand how our consumer society is transforming the ocean – the Conversation

‘Bounty Pilfered’ (center), ‘Newer Laocoön’ (left) and ‘Threnody’ (right). All made of ocean plastic from the Atlantic, Pacific and Gulf of Mexico, installed at the Baker Museum in Naples, Fla., 2022 (by Pam Longobardi, CC BY-ND via the Converstion).

“I am obsessed with plastic objects. I harvest them from the ocean for the stories they hold…Each object has the potential to be a message from the sea – a poem, a cipher, a metaphor, a warning. My work collecting and photographing ocean plastic and turning it into art began with an epiphany in 2005, on a far-flung beach at the southern tip of the Big Island of Hawaii…