Week in Review December 29, 2017: United Nations "High Seas" Treaty, Seven New Canadian Refuges and More

1. United Nations High Seas Conservation Treaty Proposed

sea turtle, UN High Seas Conservation Treaty

The United Nations member states are working to “create the first international treaty to protect life under the high seas.” The "high seas" are defined as international waters in which no country has jurisdiction. This ocean area covers over half the Earth. The "Law of the Sea Convention" would have the authority to create off shore marine protected areas. “Less than 10 percent of the global fish catch comes from the high seas” and closing these areas to fishing would boost coastal catches by 18 percent.
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2. Canada Designates Seven New Marine Refuges

Canada has designated seven new marine refuges in the Arctic and Atlantic. “The new marine refuges near Nunavut, Newfoundland and Labrador will cover a 145,598-square-kilometer swath of ocean and add 2.53 percent to Canada’s marine protected areas. The new refuges in the Davis Strait, the Disko Fan, the Hatton Basin, the Hopedale Saddle, the Hawke Channel, the Funk Island Deep and the Northeast Newfoundland Slope will conserve significant concentrations of marine biodiversity and protect habitat critical to Narwhal and Atlantic cod.”

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3. U.S. Government Report: How Oceans Buffer Climate Change

great barrier reef, great barrier reef bleaching

The U.S. Global Change Research Program Report was recently released. In it they mention that the oceans are absorbing most of the heat from greenhouse gas emissions. This heat may lead to changes in ocean currents. The oceans are also becoming more acidic from the absorption of carbon dioxide from the atmosphere. The amount of oxygen in the oceans are decreasing by as much as 3.5%.
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4. Young Sea Turtles Fitted With Tiny Trackers

Scientists have attached tiny trackers to less-than-a-year-old loggerhead sea turtles and have found that they aren’t the passive drifters once thought. They actively swim. They were released from Brazilian beaches. Not all turtles stayed in the South Atlantic Ocean, some were carried by currents north of the equator to the Caribbean or Gulf of Mexico.
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5. Algae Growth Speeds Up Greenland's Melting

greenland, greenland ice sheet, algae and ice sheets

A new study has found that algae, growing faster due to climate change, are darkening Greenland’s ice sheets. The darker color absorbs more heat (instead of being white and reflective) and makes the ice sheets melt faster. They thus contribute to faster sea-level rise. “Researchers found that algae accounts for about 5 to 10 percent of total ice sheet melt each summer.” Black carbon and dust had been previously studied and shown to reduce the reflectivity of the ice sheets.
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6. Narwhal Whales Freeze and Flee When Frightened

narwhals, narwhal tracker, narwhal satellite tracker

Scientists have found that narwhal whales have a strange response when frightened. They freeze! Their heart rates drop, and then they quickly swim away. This response can be “highly costly” as they exert themselves with a limited blood supply. Historically narwhals had little human interactions, but this is increasing with heightened access due to melting ice.

It's Your Ocean. Do Something About it!

Thursday, December 28, 2017

Week in Review December 29, 2017: United Nations "High Seas" Treaty, Seven New Canadian Refuges and More