Movement of carbon from land to ocean and atmosphere plays an important, but understudied, role in the global carbon cycle.
Achieving the UN Sustainable Development Goals may only be possible if human activities are central to critical zone science.
To reduce persistent aerosol-climate-forcing uncertainty, new in situ aerosol and cloud measurement programs are needed, plus much better integration of satellite and suborbital measurements with models.
Big Earth data are accumulating at a rapid rate with challenges for understanding and using the data, but new tools and applications are enabling analysis and enhancing usability by policy makers.
Emissions rates are still growing every year, though that growth has slowed. The world needs to reach negative growth soon to prevent a potential 3.2°C rise by the end of the century.
Many pathways to stopping climate change involve overshooting 1.5°C temporarily. The latest synthesis of 34,000 references says that’s a bad idea.
The Intergovernmental Panel on Climate Change’s first assessment report since 2013 describes two illustrative scenarios that keep warming below 2°C—and several others that go wildly offtrack.
The Intergovernmental Panel on Climate Change showcased 50 scenarios to limit global warming to 1.5°C above preindustrial temperatures. A new study finds that only half of those scenarios are realistic.
Un nuevo estudio encuentra el factor económico que controla la divergencia entre las trayectorias de las emisiones en las evaluaciones climáticas y la realidad.
A new study finds the economic factor driving the divergence between emissions trajectories in climate assessments and reality.