A new study suggests that the Atlantic Meridional Overturning Circulation (AMOC) is losing stability and may be approaching a critical threshold. The AMOC plays a crucial role in regulating Europe's temperatures and weather patterns, and its collapse could have severe global implications.
Scientists propose integrated strategy combining climate action with policies for development, food access, equity, and environmental sustainability. The Sustainable Development Pathway aims to reconcile decent living with ecological boundaries.
The study suggests that revenues from emissions pricing should be distributed according to historical emissions, providing the greatest leeway for a consensual ambitious climate policy. This design can help overcome obstacles such as differing country sizes and wealth, ultimately strengthening EU climate policy.
Simulations show domino effects at up to 2°C global warming, increasing risk of irreversible climate change. Rapidly reducing greenhouse gas emissions is indispensable to limit risks of crossing tipping points.
Researchers detected new early-warning signals indicating the Greenland Ice Sheet's destabilization and potential melting at limited warming levels. The study suggests that a tipping point is approaching in the central-western part of the ice sheet, which could lead to substantial long-term sea level rise.
Only a few hundred climate scenarios avoid significantly overshooting the 1.5°C limit, according to a new study. All realistic scenarios require significant emission reductions and rely on multiple mitigation levers, including carbon removal and land use changes. The window for meeting the target is rapidly closing.
Researchers warn that hydrogen-based fuels are not a straightforward solution for climate targets, as they come with significant costs and energy losses. Direct electrification alternatives are often more economic and efficient.
A new study suggests that ambitious climate policies can alleviate poverty reduction challenges by redistributing emission pricing revenues and promoting fair international burden sharing. The research projects that implementing these measures could lead to a small reduction in global poverty of around 6 million people by 2030.
A new EU climate target of cutting emissions by 55% by 2030 will dramatically speed up the decarbonization of Europe's power sector, leading to a significant phaseout of coal power. Renewable energies are expected to contribute nearly three-quarters of power generation in 2030 and reach zero emissions in the power sector by 2040.
A new study reveals that proximity to existing solar panels is the most significant factor influencing an individual's likelihood of installing solar panels on their own roof. The findings suggest that seeding solar panels in areas with few or no panels can create a tipping point, potentially leading to widespread adoption and replacin...
Researchers propose a dynamic, long-term carbon price pathway to minimize governance and sustainability concerns. The approach aims to balance emissions reduction with economic viability, reducing the need for excessive CO2 removal technologies.
The study predicts stronger and more erratic monsoon rainfall in India, with potentially grave consequences for the country's agriculture, economy, and food systems. Climate change is also causing more unpredictable weather extremes, posing a threat to the socio-economic well-being of the Indian subcontinent.
A new study finds that climate change may lead to a decline in suitable areas for high-quality specialty coffee types in Ethiopia, threatening the country's economy and coffee industry. The researchers suggest that tailored adaptation measures are needed to mitigate this trend.
A new study reveals that bioenergy production without sustainable irrigation management could double global water stress by the end of the century. However, implementing sustainable water management measures can halve this increase, but poses significant tradeoffs and challenges.
Scientists have found consistent evidence that the Atlantic Meridional Overturning Circulation has weakened unprecedentedly in over 1000 years. The slowdown is linked to human-caused global warming, which disrupts the deep convection mechanism driving the ocean current.
Researchers found that day-to-day temperature variability reduces economic growth by an average of 5 percentage-points. Economies in low-income regions are more strongly affected, while those with higher incomes are better prepared due to familiarity and resilience.
The COVID-19 pandemic has accelerated the decline of coal power generation by reducing electricity demand and increasing costs. Global CO2 emissions from the power sector decreased significantly in 2020 and are likely to remain low due to ongoing investments in renewable energy.
A new study by the Potsdam Institute for Climate Impact Research suggests that carbon pricing is a more efficient way to address climate change than regulations and bans. The study highlights the economic benefits of Pigouvian taxation, which can help maximize welfare while minimizing negative externalities.
A new study published in Nature suggests that differentiated CO2 prices combined with moderate financial transfers between advanced and developing countries can efficiently achieve fair burden sharing while keeping overall costs in check. This approach mediates the trade-off between national sovereignty and economic efficiency.
A new study warns that the current global nutrition transition will lead to an unprecedented increase in overweight and obese individuals, surpassing 4 billion by 2050. This, combined with food waste and unsustainable agricultural practices, poses significant threats to global hunger, public health, and environmental protection.
A new study explores long-term if-then-scenarios to quantify the effects of Arctic summer sea-ice melting on global warming. The research reveals that complete Arctic sea-ice melt could lead to an additional 0.2°C of warming, threatening climate goals.
A recent study found that the COVID-19 pandemic led to a significant decrease in global carbon dioxide emissions, with a total drop of 1551 million tonnes. The pandemic resulted in a 16.9% decline in emissions in April, largely due to lockdown measures and reduced transportation sector activity.
Researchers found that Antarctica's ice sheet can become unstable and melt at specific warming levels, leading to a rise in global sea levels. If global temperatures reach 4 degrees above pre-industrial levels, Antarctic melting alone could raise sea levels by over 6 meters.
Large volcanic eruptions improve monsoon predictability by synchronizing with El Niño events, making it easier to anticipate seasonal rainfall in India. This finding helps develop climate models and assess regional implications of geo-engineering experiments.
A new study reveals that environmental factors drive migration, particularly in regions with middle incomes and agriculture. Climate change impacts vary by hazard type and context, with changing temperatures having the strongest effect.
Researchers found that tree ring data significantly overestimated climate persistence in Central Europe. The corrected temperature series suggests that medieval climate fluctuations were less pronounced than thought, making the present human-made warming even more extraordinary.
A new study reveals that climate change can cause greater damages to economies than previously thought, with up to three times the estimated output losses of a 1°C hotter year. The research found significant economic losses of 10% globally and over 20% in tropical regions by 2100.
A team of researchers from Potsdam Institute for Climate Impact Research analyzed the COVID-19 pandemic to identify lessons for mitigating climate change. They propose a 'Climate Corona Contract' that unites younger and older generations to address the climate emergency.
A study categorizes innovations with potential to transform the food system, including artificial meat and fine-tuned photosynthesis. To succeed, these innovations require policy conditions and social acceptance.
A recent study reveals that climate disasters increase the risk of armed conflicts in vulnerable countries, where large populations, political exclusion, and low development create instability. The research combines statistical analysis with regional case studies to demonstrate the link between disaster occurrence and conflict onsets.
Researchers found that phasing out coal can reduce greenhouse gas emissions by 50% worldwide, while saving 1.5% of global economic output by 2050. The benefits of a coal exit outweigh the costs, with local and short-term impacts on public health and biodiversity being most significant.
A limited nuclear war could lead to severe losses in agricultural production and disrupt global trade, causing a food system shock unprecedented in documented history. The study found that major breadbasket regions would cut exports, leaving countries worldwide short of supplies.
The 'Antarctica Factor' study reveals that Antarctic ice-loss is the greatest risk and uncertainty for global sea-levels, with a possible contribution of up to 58 cm within this century. The range of estimates is quite large, from 6-58 cm, but the results are robust due to the large number of ice sheet modeling groups involved.
Researchers found that limiting temperature increase to 2°C yields economically optimal results; climate policies can balance damages and mitigation costs. The study tested various uncertainties and confirmed the 2°C limit is cost-efficient across different climate sensitivities.
A new study shows that buildings made from wood instead of cement and steel can avoid greenhouse gas emissions from production and store CO2, turning them into a powerful means to mitigate climate change. Sustainable forest management is crucial for this transition.
Researchers at Potsdam Institute for Climate Impact Research (PIK) discovered a way to produce enough food for up to 10 billion people without compromising the Earth system. The study suggests that adopting more sustainable forms of agriculture can increase production in regions like Sub-Saharan Africa and improve climate resilience.
Researchers identified six socio-economic tipping elements, including divestment from fossil fuels and climate-neutral cities, that can drive rapid global decarbonization. Permanent support and backing by changes in norms and values are crucial for sustaining these transitions.
The study reveals that interactions between planetary boundaries amplify human impacts, particularly in climate change and biosphere integrity. Reducing pressure on one boundary can lessen pressure on others, offering a win-win solution for sustainable development.
Using a first-time combination of multiple modelling systems, researchers show that relying mainly on wind and solar would bring most co-benefits for the health of people and planet. Land use requirements for power production will increase in all scenarios, with bioenergy being the most land-devouring method.
A new study warns that current Paris Agreement pledges would cause 20 cm of sea-level rise by 2300, with just five countries - China, USA, EU, India, and Russia - responsible for half the impact. To avoid this, governments must significantly scale up emission reduction efforts.
A new study reveals that carbon budgets for limiting warming to 1.5°C are more uncertain than thought, with underestimated Earth system feedbacks such as permafrost thawing potentially reducing remaining budgets by 100 GtCO2. The research highlights the importance of considering these factors in climate policy-making.
A team of scientists suggests pumping ocean water onto glaciers in West Antarctica to prevent long-term sea level rise. The plan involves distributing the water with snow cannons, but poses significant environmental and engineering challenges.
A team of scientists successfully conducted the first computer simulation that matches ocean floor sediment data on climate evolution over 3 million years. The study reveals that changes in CO2 levels were a main driver of ice ages, and current greenhouse gas emissions are now triggering unprecedented climate change.
New research reveals that regions with higher rainfall variability are more resilient to current and future climate disturbances. However, the Amazon's ability to cope with climate change is still uncertain due to ongoing forest clearance and policy issues.
Researchers discovered a global pattern of extreme rainfall teleconnections linked to jetstreams, which could enhance weather forecasting and damage mitigation. The study's findings have practical relevance for improving predictions of extreme rainfall events.
Researchers disentangled 'hiatus' confusion by analyzing global surface temperature data and comparing model projections to observations. They found no statistical evidence of a pause or slowdown in global warming.
A new study reveals that regions worldwide are experiencing more extreme weather events, with heavy rainfall in North America and Europe, while Africa sees an increase in droughts. The study suggests that human-caused climate change is driving these changes, with significant impacts on people's livelihoods.
A review of research on summer weather stalling highlights the impact of Arctic warming on air circulation patterns, leading to more frequent extreme weather events. The study suggests that prolonged sunny episodes can turn into heat waves and heavy rainfall, posing a major climate risk.
A study suggests that redirecting fossil fuel subsidies to carbon prices could generate substantial funds for public goods like healthcare and education. This could cover a significant portion of the required public funding needs for sustainable development in several countries.
International team of researchers warns that even with stringent climate policies, residual fossil fuel emissions could still cause CO2 emissions to endanger the climate targets agreed on by the international community. The study highlights the need for accelerated energy efficiency improvements and widespread electrification of energy...