Sustainability Pioneers is a documentary series exploring the transition to sustainable energy. It investigates 2014 energy

Sustainability Pioneers is a documentary series exploring the transition to sustainable energy. It investigates 2014 energy production in Pennsylvania and its impact on air, climate, and public health.

Support the series by making a tax-deductible donation at sustainabilitypioneers.com.

Oil prices have fallen to multi-year lows. This significant drop raises questions about its impact on various stakeholders.

CNBC investigates what these low prices mean for oil producers,

Oil prices have fallen to multi-year lows. This significant drop raises questions about its impact on various stakeholders.

CNBC investigates what these low prices mean for oil producers, major oil companies, and consumers.

This excerpt is from Professor Leif Wenar's January 27th presentation in Seattle. The full speech is

This excerpt is from Professor Leif Wenar's January 27th presentation in Seattle. The full speech is available here. Wenar is the author of Blood Oil: Tyrants, Violence, and the Rules That Run the World.

He holds the Chair of Philosophy & Law at Kings College London, where he has worked since 1997. A Stanford alumnus, he completed his doctoral thesis at Harvard with John Rawls, Robert Nozick, and T.M. Scanlon.

This excerpt was produced by Ruth Ann Barrett of EarthSayers.tv, Voices of Sustainability. Learn more and get involved in the Clean Trade movement at cleantrade.org.

This excerpt features Leif Wenar's January 27, 2016 speech, drawing from his book, "Blood Oil: Tyrants, Violence, and the Rules That Run the World."

Curated by Ruth Ann Barrett for

This excerpt features Leif Wenar's January 27, 2016 speech, drawing from his book, "Blood Oil: Tyrants, Violence, and the Rules That Run the World."

Curated by Ruth Ann Barrett for EarthSayers.tv, Voices of Sustainability, this piece explores themes like 'Might Makes Right.' For further details, visit the Clean Trade site: http://bit.ly/mightnotright.

The Kimberley Process Certification Scheme (KPCS), established in 2003, is a control system designed to

The Kimberley Process Certification Scheme (KPCS), established in 2003, is a control system designed to authenticate diamond provenance. Founded to end the trade of "blood diamonds" that funded conflicts in the late 1990s, it now includes over 49 members (including the European Community). These members adhere to strict regulations to verifiably track the legitimate origin of each diamond.

The Responsible Jewellery Council (RJC) is a not-for-profit organization focused on setting standards and certification. Its Chain-of-Custody Certification for precious metals supports ethical initiatives, providing benefits to members and stakeholders.