Grand Chief Stewart Phillip speaks to First Nations leader before signing the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Chief Na'moks (John Ridsdale) of the Wet'suwet'en Nation listens to a speech during the signing of the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Gabriel George of the Tsleil-Waututh Nation sings a traditional song while First Nations leaders sign the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Grand Chief Stewart Phillip speaks to First Nations leader before signing the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Charlene Aleck of the Tsleil-Waututh Nation signs the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Gabriel George of the Tsleil-Waututh Nation is pictured at the signing of the Treaty Alliance Against Tar Sands Expansion during an announcement on oil sands pipelines, with special relevance for the Kinder Morgan and Northern Gateway proposals, at the Musqueam Community Centre in Vancouver, British Columbia, Canada, September 22, 2016. REUTERS/Ben Nelms

Hilda Heine, President of the Marshall Islands, addresses the 71st session of the United Nations General Assembly at the UN headquarters in New York on September 22, 2016. / AFP PHOTO / DOMINICK REUTERDOMINICK REUTER/AFP/Getty Images

A model presents creations at the Prada fashion show during Milan Fashion Week Spring/Summer 2017 in Milan, Italy September 22, 2016. REUTERS/Max Rossi