[3] Petra Kelly, a German ecofeminist activist, is often cited as one of the first thinkers and leaders of the green politics movement.

[3] The Global Greens Charter is the guiding document that establishes the principles and "core values" to which member parties and associated organizations should attempt to adhere.

[6] It sets out global principles that cross boundaries to bind Greens from around the world together: Priorities outlined in the Charter include reforming the dominant economic model, tackling climate change, ending the hunger crisis, promoting vibrant democracy, working for peace, protecting biodiversity.

[8] The makeup of this committee stems from three elected members from each of the four regional federations, supported by three alternates who can stand in when needed.

The Global Greens have held five Congresses since 2001 in various locations around the world: The Global Greens strives to achieve regional diversity and representation, encouraging Congress locations to represent the wide geographical spread of the organization's member parties and organizations.

Milne was appointed as Global Greens Ambassador in recognition of her considerable expertise in climate change and as an elected member of state and federal parliaments, including as Leader of the Australian Greens.