Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau places his kayak to paddle on the Niagara River, that borders with the United States, to mark World Environment Day, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau greets people, following paddling a kayak, to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau looks on after he paddled a kayak to mark World Environment Day on the Niagara River, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau looks on after he paddled a kayak to mark World Environment Day on the Niagara River, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles his kayak to mark World Environment Day on the Niagara River, as he stops to visit people on a dock, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau greets people following paddling a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau poses with children after on World Environment Day, after paddling a kayak on the Niagara River, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau smiles as he paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau paddles a kayak to mark World Environment Day on the Niagara River, that borders with the United States, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau carries his kayak to paddle on the Niagara River, that borders with the United States, to mark World Environment Day, in Niagara-on-the-Lake, Ontario, Canada June 5, 2017. REUTERS/Mark Blinch 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario 

Canada's Prime Minister Justin Trudeau makes a guest appearance on the ABC morning television program "Live! with Kelly & Ryan" with hosts Kelly Ripa and Ryan Seacrest in Niagara Falls, Ontario, Canada June 5, 2017. REUTERS/Lindsay Dedario