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Drought frequency will probably increase under climate change, posing a potential risk to forests. Forest response is variable, but subsequent droughts generally have a negative impact at the tree and ecosystem scales, with systems dominated by conifers particularly vulnerable.
The impacts of climate change on people and societies are varied and nuanced, making it difficult to encapsulate in an image. Photographs of people can, however, create an emotional connection to what may otherwise be viewed as a natural problem.
Ongoing Arctic changes are impacting phytoplankton. This Review considers recent primary productivity trends and the environmental drivers, as well as how these are changing, that drive phytoplankton diversity in the region.
Raising the cost of carbon is critical for effective climate policy, but is politically challenging because the public are averse to costs. Conventional wisdom suggests this could be addressed by giving the public time to adjust by gradually increasing costs. However, new research shows that the public actually prefers a constant cost curve.
High warming rates may exceed an organism’s ability to track their thermal habitats. The velocity of climate change in inland standing waters will increase markedly under future warming, making freshwater species particularly vulnerable because their habitat is fragmented in the landscape.
Introducing carbon prices is considered central to climate change mitigation. This study shows that publics prefer constant carbon cost schedules rather than those that gradually increase, even when average costs are the same, because of a desire to smooth consumption over time.
Co-production is an increasingly popular approach to knowledge generation encouraged by donors and research funders. However, power dynamics between institutions in the Global North and South can, if not adequately managed, impede the effectiveness of co-production and pose risks for long-term sustainability.
The slowdown in the Atlantic Meridional Overturning Circulation (AMOC) is remotely detected in an increasing South Atlantic salinity trend. This salinity pile-up is caused by reduced divergence of surface salinity transport under a weakened AMOC.
Monitoring of snowshoe hare (Lepus americanus) cause-specific mortality and behaviour reveals increased risk of predation from coyote (Canis latrans) in shallow snow. This could disrupt the keystone Canada lynx (Lynx canadensis)–hare predator–prey cycle in North American boreal forests.
Using a meta-analysis approach, the authors find robust evidence that environmental factors play a role in explaining migration patterns across countries and over time, but the size of the effects depend on the economic and sociopolitical context, and the environmental factors considered.
The short observational record makes it difficult to gauge how unprecedented recent Arctic warming is. A multi-model large ensemble estimates a new Arctic climate has emerged for sea-ice extent. As the Arctic shifts from a primarily frozen state, temperature and precipitation follow within decades.
Multinational enterprises and their international supply chains can have large carbon footprints, but there is mitigation potential. Global carbon transfer through investment has declined in recent years, and this framework, assigning emissions to the investing country, would inform further action.
Many marine species have migrated towards the poles as water temperatures warm. In contrast, due to changes in the timing of spawning and transport, benthic invertebrates on the Northwest Atlantic continental shelf are pushed into warmer waters where mortality could be higher.
Observed ice-sheet losses track the upper range of the IPCC Fifth Assessment Report sea-level predictions, recently driven by ice dynamics in Antarctica and surface melting in Greenland. Ice-sheet models must account for short-term variability in the atmosphere, oceans and climate to accurately predict sea-level rise.