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The authors develop a high-resolution model of coral larval dispersal for the southern Great Barrier Reef. They show that 2 °C of warming decreases larval dispersal distance and connectivity of reefs, hampering post-disturbance recovery and the potential spread of warm-adapted genes.
As temperatures rise, plants unfold their leaves earlier in spring, but whether plant roots respond similarly is seldom quantified. Now, a meta-analysis suggests that leaf and root phenology do not respond to warming in the same way, even within the same plant types.
The authors conduct a meta-analysis to reveal mismatches in above- and belowground plant phenological responses to warming that differ by plant type (herbaceous versus woody). The work highlights a need for further research and consideration of under-represented belowground phenological changes.
Net-zero emissions is more than a concept of physical climate science. It is implemented in social, political and economic contexts. This Perspective proposes seven attributes that are critical for the practical and effective implementation of net zero.
There is a balance in mitigation pathway design between economic transition cost and physical climate threats. This study provides a comprehensive framework to assess the near- and long-term risks under various warming scenarios globally and in particular regions.
The climate system may respond in different ways to reductions in atmospheric CO2 concentrations. Work now shows a delayed recovery (hysteresis) of the tropical rainbelt, with widespread implications for water resources.
In idealized model experiments where CO2 increases four-fold before returning to its original level, temperature and precipitation show almost linear responses to CO2 forcing. In contrast, the response of the Intertropical Convergence Zone lags behind CO2 changes, associated with delayed energy exchanges.
Flooding-adaptation studies often ignore unique social, cultural and institutional drivers. Now, research illuminates the drivers that are unique versus shared across socio-cultural contexts and adaptations, which vary in ease of implementation.
The context and motivation around adaptation are influenced by local culture and institutions. In the United States, China, Indonesia and the Netherlands, some factors (such as perceived costs) have similar influences on household adaptation to flooding, but others (such as flood experience) differ between countries.
This month, Nature Climate Change formally introduces a new content type, Policy Brief. We hope it will help to bridge the gap between researchers and policy professionals.
Most emissions scenarios in line with the Paris Agreement have shown a large amount of net-negative CO2 emissions during the second half of this century. A new set of scenarios expands this picture.
Eastward flow in the Southern Ocean is the primary conduit between ocean basins. A comprehensive study of multi-decadal observational records and model experiments reveals that warming in the upper ocean is causing this flow to accelerate.
We find that if all countries adopt the necessary uniform global carbon tax and then return the revenues to their citizens on an equal per capita basis, it will be possible to meet a 2 °C target while also increasing wellbeing, reducing inequality and alleviating poverty. These results indicate that it is possible for a society to implement strong climate action without compromising goals for equity and development.