In November 2023, CLEA travelled to California to celebrate the 100th anniversary of the discovery of the noosphere, the "sphere of thought" enveloping the Earth. The conference “N2: The Noosphere at 100: The Future of Human Collective Consciousness” was initiated by the non-profit organization Human Energy and co-organized by CLEA. During this 3-day gathering at the University of California, Berkeley, an interdisciplinary group of thinkers and doers explored how to intentionally, collectively and ethically steer the future evolution of the noosphere. We have compiled some of the conference's highlights to give you a better grip on the noosphere and its relevance for the Anthropocene world of today.