The Manifesto was launched at a High Level Event in London on the 31st July 2019, where Emergency response mechanisms to address the Climate and Environmental Crisis are being explored. The Manifesto has been developed in response to the increasing international and United Nations evidence and understanding of the severity of our global climate and environmental crisis. This builds upon collaborative action to advance the InterAction Council's Dublin Charter, endorsed at its Plenary Session in 2017. The overall aim is to secure a healthy planet for the wellbeing of future generations for all, by placing the health of the planet at the heart of decision making and establishing emergency response mechanisms at global, national and community levels. Now more than ever, we need courageous leadership to take crucial decisions and actions to secure a healthy planet for all, including the very existence of human civilization. The InterAction Council is encouraged by the boldness and energy of our younger generations, as well as the commitment expressed by the 30 organisations endorsing the Manifesto. The establishment of the Digital Platform for Planet, Place and People, a Hub of the Commonwealth Centre for Digital Health, will act as a collaborative mechanism to promote innovation and rapid responses as a common good. Going forward, we welcome everyone to become a Guardian to Secure a Healthy Planet for All, and to support this initiative in scaling up the ambitions laid out in the Manifesto.