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Earth is polluted with plastic waste, with impacts on ecosystems and health. This Issue and online Collection bring together research on plastic in the environment and discussion on how to combat this growing problem.
The Tibetan Plateau is a dynamic environment, with geological, surface and climatic processes interacting across timescales. This Focus issue highlights the complex evolution of the region, from its geological origins to projected changes under anthropogenic forcing.
Permafrost is thawing with rising temperatures. More work and collaboration are needed to understand the impacts of this thaw, and how to mitigate them.
