Volume 3 Issue 8, August 2022

An article in Nature Climate Change reports that emigration will reduce by 10–35% in the lowest income groups, exposing them to subsequent climate impacts.

Kyle Manley describes how social media information provides insight into ecosystem service demand.

Nan Wu discusses how DNA analysis of the plastisphere can be used to trace and track microplastics.

Nemi Walding explains how flume experiments are used to identify the fluid dynamic parameters of pyroclastic density currents.

The Antarctic Ice Sheet (AIS) underwent dramatic changes over the Holocene, impacting global sea levels. In this Review, Jones et al. discuss changes in this ice sheet during the pre-industrial Holocene. The drivers behind these past changes are explored, as well as their relevance for current and future changes in the AIS.

Black carbon is produced by wildfire and fossil fuel burning, and persists in the environment over centuries to millennia. This Review describes black carbon sources and budgets, discusses its transport along the land-to-ocean continuum and highlights its enigmatic cycling in the ocean.

Phase transitions in the mantle transition zone could affect material and heat exchange between the upper and lower mantle. This Review discusses how compositional heterogeneity affects mantle convection based on seismic observations, plausible mantle compositions and model predictions.