Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
This Review considers the evolving relationship between land-use change and greenhouse gas emissions in Brazil. Despite the intensification of agriculture over the past decade or so, deforestation has decreased, resulting in reduced greenhouse gas emissions. However, inequality in land ownership and city growth fuelled by rural–urban migration remain pressing issues for policymakers.
Marine vegetated habitats occupy a small fraction of the ocean surface, but contribute about 50% of the carbon that is buried in marine sediments. In this Review the potential benefits of conservation, restoration and use of these habitats for coastal protection and climate change mitigation are assessed.
Satellite remote sensing has advanced the understanding of the climate system in the short period of observations. This study highlights remote sensing discoveries that were not detected by climate models or conventional observations, and suggests future challenges for the robust determination of climate trends.
An increasingly ice-free Arctic Ocean could have significant implications for greenhouse-gas sources and sinks in the Northern high latitudes. In this Review, the impact of diminishing sea-ice extent on greenhouse-gas exchange in both marine and terrestrial Arctic environments is synthesised and discussed.
Earthworms play an essential part in determining the greenhouse-gas balance of soils worldwide but whether their activity moves soils towards being a net source or sink remains controversial. This Review of the overall effect of earthworms on the greenhouse-gas balance of soils suggests that although beneficial to fertility, earthworms tend to increase the net soil emissions of such gases.
