A new study suggests that extending the life of current cars can reduce CO2 emissions significantly more than replacing them with new, green vehicles. By keeping and using cars longer, the decrease in manufacturing emissions offsets additional emissions produced by existing cars.
The Copernicus Ocean State Report reveals record low Arctic ice levels, with a 90% reduction in average sea ice thickness in the Barents Sea. The report also highlights extreme variability in ocean temperatures and oxygen levels, posing significant challenges for marine ecosystems.
Researchers argue that improving policy analysis methods can lead to better decisions, particularly for transformative policies like climate change. A new framework focuses on evaluating risks, opportunities, and resilience, rather than just costs and benefits.
A new study proposes a practical way of measuring how different nations should reduce carbon emissions to maximize worldwide wellbeing. The utilitarian approach assigns different emission reduction goals to countries based on their wealth and ability to grow and maintain citizens' health.
A new study improves climate change cost estimates by considering annual climate variability and persistent economic damages. This advancement highlights the urgent need for climate action to mitigate the damage caused by greenhouse gas emissions.
A new study highlights the need for a national policy to protect submerged Indigenous sites, which are at risk due to climate change, dredging, and seabed mining. Archaeological discoveries off the Pilbara coastline in Western Australia have uncovered ancient stone tools, rock art, and engravings dating back over 7,000 years.
Researchers propose new statistical approaches to estimate climate change impacts on US agriculture, focusing on county-level analysis. They suggest that current grouping methods can lead to inaccurate results and recommend using C-Lasso, causal forest algorithm, and geographically weighted regressions.
A recent study suggests that personal carbon allowances (PCAs) may be a feasible solution to reduce emissions and promote sustainable lifestyles. The researchers propose a market-based approach to provide individuals with incentives and options to link their actions with global carbon reduction goals.
Countries lagging behind in renewable energy adoption risk lower industrial competitiveness and economic instability. Uneven transition patterns can exacerbate existing international tensions, making it difficult for late decarbonizers to catch up with early movers.
A new study led by Adam Pearson and Jonathon Schuldt found that family values are a stronger predictor of climate opinions and policy support among US Latinos than political views. Familism, or cultural values representing commitment to the family, was the most important predictor, even more so than politics.
A new study analyzes how access to modern energy services evolves over time under different socioeconomic growth scenarios and policy scenarios that meet climate mitigation goals. The researchers found that socioeconomically diverse households in different regions have distinct preferences for energy services, highlighting the need for...
A new study reveals significant differences in forest recovery rates across Amazonian countries, with some experiencing little to no recovery even 20 years after deforestation. The research highlights the need for targeted interventions to protect and restore remaining forests.
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.
A new metric, 'mortality cost of carbon,' quantifies the impact of climate change on human lives. The study finds that current carbon emissions could lead to 83 million excess deaths by 2100, with most fatalities occurring in Africa and South Asia.
Scientists warn of unprecedented climate-related disasters and environmental degradation, highlighting the need for drastic reductions in greenhouse gases and transformational system changes. They advocate for a globally implemented carbon price, phase-out of fossil fuels, and strategic climate reserves to safeguard biodiversity.
New research from the University of Arizona identifies climate-related threats to US Department of Defense facilities in the southwestern United States. The study recommends emphasizing risks to DOD missions, finding champions at individual bases, and integrating climate considerations into existing plans to mitigate these challenges.
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.
Researchers integrate disciplines to chart a roadmap for strategic and managed climate retreat. Effective processes involve diverse responses, local knowledge integration, and public deliberation. Communities can define research approaches to support adaptation strategies in their homelands.
A new study by Silvia Weko reveals that political ideology plays a larger role than party preferences in shaping attitudes towards climate policy among Europeans. Cosmopolitan attitudes are more positive towards climate action, while communitarian minds are more concerned with energy security and economic development.
IIASA researchers have proposed a novel systematic scenario framework to help policymakers assess and compare climate policies across countries. The framework allows for exploration of multiple systematic scenarios associated with emissions reductions in 2050, providing a flexible approach to assessing national long-term pathways.
The study highlights the need for better understanding of terms, rules, and procedures used in GHG emission inventories. Research communities must provide methodological guidance to improve countries' GHG inventories, while also benefiting from their data.
The conference focused on resilience, relocation, and climate justice in areas affected by climate change. Key findings highlighted the importance of environmental justice in managed retreat strategies.
A new framework connects climate mitigation scenarios and financial risk assessment, enabling a more accurate understanding of the financial system's impact on the transition. By integrating climate-financial risk assessments into IAMs, investors' expectations can be adjusted to enable or hamper the low-carbon transition.
A new study explores how banks' expectations about climate-related risks affect the low-carbon transition. The researchers developed a model to assess the transmission channels of two main policies: a carbon tax and a green supporting factor.
Oregon State University researchers argue that socially just population policies can help reduce greenhouse gas emissions and promote human rights. Effective policies, such as improving education for girls and young women, can significantly decline fertility rates in developing countries.
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 study by Oregon State University suggests that policy decisions will have a greater impact on coastal communities' risk than climate change. The researchers used a modeling platform to analyze the effects of flooding and erosion on buildings, infrastructure, and beach accessibility through the 21st century.
A new analysis by New York University researchers found that the world's largest meat and dairy companies have not made explicit commitments to achieving net-zero emissions by 2050. Only four companies, including Dairy Farmers of America and Nestle, have made such a commitment.
Urban populations across Africa are forecasted to triple by 2050, resulting in significant environmental changes. Including local community voices in early planning stages can help reduce the impact of climate-related events and promote more inclusive urban climate policies.
Researchers surveyed 9,911 people in Germany and the US, finding that emphasizing urgency alone doesn't increase support for high-cost climate plans. However, giving context and communicating effective near-term solutions can boost support, particularly when politicians are transparent, engaging, and authentic.
New research shows that while 64 countries cut fossil CO2 emissions during 2016-2019, the rate of reduction needs to increase tenfold to meet the Paris Agreement aims to tackle climate change. Global emissions grew by 0.21 billion tonnes of CO2 per year during 2016-2019 compared to 2011-2015.
A global survey found significant international support for governments to take more action on the environment, with high levels of agreement in seven major countries. The study suggests that voters across party lines want to see more government action, with a majority supporting policies such as protecting wildlife and planting trees.
The report identifies eight categories of transition risk, including economic, financial, societal, environmental, technological, energy-related, geopolitical, and corporate. Policymakers and researchers need to grapple with the complex interconnections that tie these risks together.
A new study published in The Lancet Planetary Health highlights the benefits to health if countries adopt climate plans consistent with the Paris Agreement. Adopting such policies could save up to 6.4 million lives due to better diet, cleaner air, and increased exercise per year across nine countries.
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.
Former UNFCCC leaders call for effective implementation, ambitious targets, and concrete strategies to avoid dangerous climate change and meet the 1.5°C temperature increase threshold
Researchers assessed the impact of international border policy on migration flows and climate change exposure from 2015 to 2100. They found that most migrants move to areas experiencing less severe climate change impacts when allowed to migrate.
A new study by UC Davis researchers incorporates natural capital into climate change cost models, revealing large implications for climate policy. The authors found that the social cost of carbon is likely too low, and rapid mitigation of climate damage to natural systems is warranted.
A study by Washington University in St. Louis researchers found that consumers across the US and Europe prefer a constant-cost plan to fund climate action, reducing opposition compared to ramp-up approaches. The constant-cost plan also encourages energy reduction over time, even with high average household costs.
The RCP 8.5 scenario is the most appropriate for assessing climate change impacts by 2050 due to its close agreement with historical emissions and current policies. This scenario tracks within 1% of actual emissions, making it a useful tool for informing societal decisions on climate issues.
Researchers report that RCP8.5 agrees with historical carbon dioxide emissions to within 1%, suggesting its continued use in climate assessments. The scenario is consistent with expected outcomes of current and announced policies through 2050, indicating its value for climate planning.
A USask-led partnership has been awarded $2.5 million to increase climate change education, training, and public awareness globally. The six-year Monitoring and Evaluation of Climate Change Education project will develop a standard set of quality education indicators and train students and policy makers.
Researchers propose sub-national climate clubs as an alternative to the UNFCCC, which has faced logistical limitations and voluntary action issues. The 'climate club' model offers exclusive trade benefits and penalties on imports from non-members to encourage participation.
A CMAJ editorial argues that Canada's government should adopt a holistic approach to address climate change, health, and taxes. The author suggests that framing these issues together can help people understand and support practical policies aimed at stalling climate change.
A new study finds that conservatives who report personal harm from extreme weather events, such as wildfires or floods, are more likely to support climate change mitigation policies. The study surveyed over 1,600 residents in communities affected by extreme weather events and found a significant link between reported harm and support f...
The UN Climate Action Summit emphasizes the need to address climate change's global health emergency. IDSA urges leaders to invest in monitoring and preparedness for infectious disease threats, including vector-borne and waterborne diseases.
A new study proposes a novel scenario framework for climate policy, focusing on capping global warming at a maximum level with either temperature stabilization or reversal. This approach addresses the limitations of current scenarios, which prioritize reaching specific climate goals in 2100 over long-term negative effects.
A new study reveals that households in Europe will increasingly rely on air conditioners to adapt to climate change, generating more greenhouse gas emissions. The study shows that household wealth, presence of elderly family members, and environmental awareness are crucial factors in deciding to install AC.
The G20 leaders should focus on increasing funding for low- and middle-income nations to address the impacts of climate change, wars, and nationalism. The authors argue that increased domestic funding is needed to achieve the United Nations' Sustainable Development Goals (SDGs) and promote universal health coverage.
A groundbreaking study quantifies the impact of lobbying on climate policy enactment, finding that firms expecting losses benefited from lobbying efforts and reduced the bill's chances by 13 percentage points.
A study by IIASA researchers and colleagues finds that stringent climate policies could negatively impact food security, threatening 130-280 million people with hunger in 2050. However, smart and inclusive policy designs can mitigate these risks at a modest cost of 0-0.46% GDP.
A new study published in Geosphere investigates how scientists perceive interactions with policy makers, revealing five distinct models: a beacon, collaborator, educator, outcast, and investigator. The researchers emphasize the importance of understanding individual perspectives to effectively engage scientists in policy decisions.
A new European study suggests that individuals can play a significant role in reducing greenhouse gas emissions by making voluntary lifestyle changes, such as eating less meat and using fewer cars. However, the authors argue that these changes alone are insufficient to meet the Paris Agreement goal of limiting warming to 1.5C, highligh...
A new policy perspective published in Science warns that a ten-year delay in emissions reductions could negate natural climate solutions' benefits. Natural climate solutions like forest enhancement and carbon sequestration are not enough to meet the Paris Agreement's goals without rapid mitigation efforts.
A new study emphasizes the importance of behavioral policies in encouraging the adoption of alternative-fuel vehicles, citing consumer preferences and climate policies as key factors. The research suggests that a combination of policies can increase the market share of low-carbon vehicles to over 25% by 2050.
A new study by Vanderbilt University researchers reveals that urban water conservation policies are closely tied to a city's political leaning, with left-leaning cities adopting stronger water-saving measures. This finding suggests that water conservation may be more politicized than previously thought, and could have important implica...
A team of Cambridge researchers has identified four key challenges in communicating policy options, including the need to balance detail and comprehensibility. They found that existing materials often oversimplify or overcomplicate issues, making it difficult for policymakers and citizens to make informed decisions.
A new study suggests that the global economy is facing a potential $1-4 trillion loss in fossil fuel assets, regardless of climate policies. The 'carbon bubble' is expected to burst due to declining demand for fossil fuels and technological advancements in low-carbon technologies.
The Tyler Prize honors the groundbreaking research of Dr. Falkowski, which reveals the critical role of tiny phytoplankton in solving climate change. Dr. McCarthy's leadership in global policy initiatives has informed significant climate change policies.
A new analysis by George Washington University researchers finds that health concerns are cited in a minority of climate lawsuits but may have critical potential for protecting communities. The study suggests that including health benefits in climate litigation could catalyze effective policy-making.