Protest outside Canadian Embassy over rubbish

Environmental groups, led by Eco-Waste Coalition, are protesting to pressure the Canadian Embassy and the Philippine President to address the issue of Canadian waste disposal during a state visit. Since 2013, various groups have been appealing for Canada to take back its waste.

What is the main issue that the environmental groups want to be included in the agenda of the state visit?

What is the role of Eco-Waste Coalition in the context of the protest?