Ocean: What are ‘dead zones’ and why are they getting worse?

Policies, Water

Ocean: What are ‘dead zones’ and why are they getting worse?

When you hear the phrase “dead zone” you likely think of a desolate area that’s barren of any cellular signals — but there are actually parts of the world called “dead zones” that are much more terrifying. Located in bodies of waters, dead zones occur when oxygen levels drop so low, that marine life is unable to survive. And although dead zones have been around for millions of years, a study conducted by UC Santa Cruz researchers shows they’ve gotten increasingly worse.

“It is essential to understand whether climate change is pushing the oceans toward a ‘tipping point’ for abrupt and severe hypoxia that would destroy ecosystems, food sources, and economies,” one of the authors of the study, Karla Knudson, said in a statement.

Read More

 

History and Health Policy in the United States: Putting the Past Back In (Critical Issues in Health and Medicine)

Health

History and Health Policy in the United States: Putting the Past Back In (Critical Issues in Health and Medicine)

In our rapidly advancing scientific and technological world, many take great pride and comfort in believing that we are on the threshold of new ways of thinking, living, and understanding ourselves. But despite dramatic discoveries that appear in every way to herald the future, legacies still carry great weight. Even in swiftly developing fields such as health and medicine, most systems and policies embody a sequence of earlier ideas and preexisting patterns.

In History and Health Policy in the United States, seventeen leading scholars of history, the history of medicine, bioethics, law, health policy, sociology, and organizational theory make the case for the usefulness of history in evaluating and formulating health policy today.

Read More