To limit global warming to 1.5°C, vast amounts of CO2 will have to be removed from the atmosphere via Carbon Dioxide Removal (CDR). Enhancing the CO2 sequestration of ecosystems will require not just one approach but a portfolio of CDR options, including so-called nature-based approaches...

While the idea of ecosystem services is crucial to environmental decision-making, usage of the term "ecosystem services" is haphazard at best. The Millennium Ecosystem Assessment, reflecting the consensus of the largest group of experts ever assembled in the area of ecosystem change, encouraged...

Nearly three billion people in Asia, Africa, and Latin America (the Energy Poor) face daily hardships due to lack of modern energy for cooking, heating, sanitation, lighting, transportation, and basic mechanical power. Despite their minimal greenhouse gas emissions, the Energy Poor will be...