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Discussions surrounding stratospheric aerosol geoengineering have increased in climate-change discourse, but our understanding of its impacts is relatively limited. This Perspective discusses the uncertainty and risk associated with stratospheric aerosol geoengineering, offering suggestions on research topics that should be prioritized.
Rising sea levels threaten to displace millions of people through direct inundation and increased exposure to related hazards. This Review highlights populations at risk from sea-level-rise-related migration and discusses individual and institutional factors that influence relocation decisions.
Vegetation on Earth is increasing, potentially leading to a larger terrestrial carbon sink. In this Review, we discuss the occurrence of this global greening phenomenon, its drivers and how it might impact carbon cycling and land-atmosphere heat and water fluxes.
Advances in numerical methods and high-performance computing have enabled imaging of Earth’s interior across scales using the physics of seismic-wave propagation. This Technical Review summarizes the use of full-waveform inversion in controlled-source and earthquake seismology.
