Search Climate Insights Directory

Climate Central analysis shows that winter's longest cold streaks have shrunk by an average of six days across 240 U.S. locations between 1970 and 2023, affecting 98% of the sites studied. These shorter cold periods threaten high-value fruit and nut crop production, snowpack-fed water supplies, Great Lakes ice cover, and the control of disease-carrying pests. While most locations saw decreases—with Las Vegas, Nevada experiencing a 21-day reduction—a few sites, including Los Angeles, California, saw streaks lengthen by two to five days.

The Great Lakes have seen a 25% decrease in basin-wide ice cover since 1973, with all five lakes experiencing shorter ice durations. This trend, mirrored across the Northern Hemisphere, is linked to warming winter air and contributes to increased lake-effect snow, altered fish species competition, and risks to cultural heritage and safety. While natural patterns like El Niño cause year-to-year variability, long-term projections suggest further ice loss and surface water warming this century.

In 2023, the EU electricity sector saw a record 19% decline in power sector emissions and a 3.4% year-on-year drop in electricity demand. Clean sources now account for two-thirds of the EU power mix, while fossil fuels have decreased to one-third of generation, down from over half in 2000.

In 2023, EU fossil fuel generation fell to less than a third of the electricity mix (33%) for the first time, driven by a record 26% drop in coal generation. Wind and solar combined for 27% of EU electricity, with wind surpassing gas power for the first time. While solar capacity grew by 56 GW, wind generation growth remains inconsistent and below the 15% annual increase needed for REPowerEU targets. EU electricity demand fell by 3.4% in 2023 to its lowest level since 2001, though a rise of 2-3% is projected for 2024. To support this transition, the EU requires significant grid investments—estimated at €584 billion by 2030—and an increase in storage capacity to 200 GW by 2030 to manage variable renewable energy and reduce curtailment.

Analysis of 240 U.S. weather stations shows that 86% of locations have experienced an increase in unusually warm winter days since 1970, with the most significant rises occurring in the Upper Midwest, Southeast, and Northeast. Winter is the fastest-warming season for 74% of the analyzed locations. These trends are accompanied by a decrease in freezing nights, shorter cold snaps, and a rise in the temperature of the coldest day of the year. The document notes that winter warming affects agriculture, water supplies, public health via allergy and mosquito seasons, and winter sports.

The WWF Markets Institute highlights the need for a systemic global transformation of food systems to address climate change and population growth. Key trends include a rapid increase in extreme weather events and a shift toward understanding soil as a biome. The report advocates for market mechanisms that reflect the true environmental cost of food and warns that the rapid adoption of AI may outpace public sector regulation and exacerbate inequality.

Since 1970, the coldest day of the year has warmed by an average of 7°F across 242 U.S. locations, with 97% of locations seeing a rise of at least 1°F. Winter cold snaps have also become shorter, decreasing by an average of six days in 97% of 244 analyzed locations. The most significant warming of coldest days occurred in the Ohio Valley (8.7°F) and Northwest (8.4°F) regions, with the highest individual increases recorded in Boise, Idaho (15.7°F) and Las Vegas, Nevada (14.3°F). These trends contribute to longer allergy and growing seasons, disrupted crop chill requirements, and altered water supplies.

The U.S. experienced a record 28 billion-dollar disasters in 2023, causing over $93 billion in damages. Since 1980, tropical cyclones have been the costliest events, while severe storms are the most frequent. The document details how warming temperatures intensify specific hazards—such as increasing rainfall intensity and fueling stronger tropical cyclones—and notes that the average time between such disasters has shrunk from 82 days in the 1980s to 12 days in 2023.

In 2023, the contiguous U.S. experienced its 5th-hottest year on record, with an annual average temperature 2.4°F above the 20th century average. The year saw a record 28 billion-dollar disasters, resulting in an estimated 492 lives lost and over $93 billion in damages. Severe storms were the primary driver, accounting for 68% of these events. The frequency of such disasters has increased significantly, with the average time between events dropping to 12 days in 2023, compared to 82 days in the 1980s.

The report finds that while Southeast Asia has increased its operating utility-scale solar and wind capacity by 20% since January 2023 to 28 GW, the transition is hindered by low construction rates for prospective projects and continued reliance on fossil fuels. Vietnam, the Philippines, and Thailand are regional leaders, but only 3% of the region's 220 GW prospective capacity is currently under construction. Despite these hurdles, the report suggests the ASEAN collective target of 35% renewable energy capacity by 2025 is attainable given existing capacity and pipelines.

The analysis finds that all regions of India experienced net warming in March and April since 1970, with the fastest March warming in Jammu and Kashmir. The probability of temperatures exceeding 40°C during late March has expanded from three states in the 1970s to nine states in 2024, with Bilaspur currently facing the highest risk at 31%.

In 2023, renewables reached a record 30% of global electricity generation, driven by solar and wind. Despite this, global power sector emissions rose by 1% to a record 14,153 million tonnes of CO2, as severe droughts caused a five-year low in hydropower, forcing a reliance on coal in countries like China and India. Solar was the fastest-growing source for the 19th consecutive year, while OECD countries continued to see falling emissions. Ember forecasts that 2023 marked the peak of power sector emissions, with a decline expected in 2024 as clean generation growth is projected to outpace electricity demand.

The 2024 Forest Declaration Assessment finds that the world is largely off track to meet its 2030 forest goals. In 2023, 6.37 million hectares of forest were permanently lost, exceeding the target required to eliminate deforestation by 45 percent. Tropical deforestation remains high, particularly in Asia, while primary forest loss is 38 percent higher than necessary to be on track. Forest degradation is widespread, with 62.6 million hectares losing ecological integrity in 2022. The report also highlights an escalation in forest fire frequency and intensity, with 138 million hectares of tree cover burned between 2001 and 2023. Restoration efforts are hindered by a lack of transparent monitoring, though tropical forest regrowth increased significantly after 2015. Biodiversity in forests is also under threat, with tree cover loss in forested Key Biodiversity Areas (KBAs) spiking by 10 percent in 2023.

The report identifies a global shift toward embedding social justice in climate action and the rise of green macroeconomic policies like the US Inflation Reduction Act and the EU Green Deal. While renewable energy capacity and electric vehicle sales are hitting records, the transition faces significant hurdles, including a 'gold rush' for critical minerals often lacking governance, inadequate private sector investment in nature, and a trust deficit between citizens and institutions. The document argues for a new 'eco-social contract' based on participatory governance and a fundamental reform of the multilateral financial system to support low- and middle-income countries.

The document analyzes global conflict trends using Uppsala Conflict Data Program (UCDP) data. It finds that while battle-related deaths from state-based conflicts decreased in 2023 compared to 2022, 2023 remains the third most violent year since 1989, driven largely by wars in Ukraine and Gaza. The report notes a record high of 59 state-based conflicts in 2023, suggesting a more complex conflict landscape where fewer countries experience a higher number of simultaneous conflicts. Non-state conflicts have stabilized at a higher level than a decade ago, with the Americas now the most affected region due to cartel violence in Mexico and Brazil. One-sided violence continues to be driven primarily by non-state actors, though thirteen governments were still responsible for such violence in 2023.

The Energy Progress Report 2024 reveals that the world is not on track to achieve any of the 2030 targets for SDG 7. While 91% of the global population has electricity access, progress reversed in 2022, leaving 685.2 million people without power, with 83% of the deficit in Sub-Saharan Africa. Clean cooking access stands at 74%, but 2.1 billion people still rely on polluting fuels. Renewable energy's share in total final energy consumption was 18.7% in 2021, and global energy intensity improved by only 0.8% in 2021, far below the 2.6% target. International public financial flows to developing countries rebounded to USD 15.4 billion in 2022 but remain well below the 2016 peak of USD 28.5 billion.

The WWF Markets Institute report outlines key surprises from 2023, including the rapid reach of AI and progress on global plastics, while highlighting systemic risks to the food system from climate change. It argues for a shift toward 'true cost' market mechanisms, the adoption of soil microbiology science, and the use of next-generation genetics to replace chemical inputs. The report emphasizes the need for better Scope 3 emissions traceability, the rehabilitation of stranded assets, and the creation of pre-competitive knowledge-sharing platforms to build global food system resilience.

The Living Planet Report 2024 documents a 73% average decline in monitored wildlife populations from 1970 to 2020, with freshwater species suffering the most (85%). The report warns that cumulative pressures from habitat loss, overexploitation, and climate change are pushing ecosystems toward irreversible tipping points, such as the potential collapse of the Amazon rainforest and coral reefs. It argues that current national commitments for biodiversity and climate are insufficient, and calls for a systemic transformation of the global food system (the leading cause of habitat loss), the energy system (the primary driver of climate change), and the financial system (which currently provides almost US$7 trillion annually in nature-negative flows).

The Living Planet Report 2024 reveals a 73% average decline in monitored wildlife populations between 1970 and 2020, with freshwater species suffering the most (85%). The report warns that cumulative pressures from habitat loss, overexploitation, and climate change are pushing ecosystems toward irreversible tipping points, such as the collapse of the Amazon rainforest or coral reefs. It argues that current national commitments are insufficient to meet the 1.5°C climate goal or the Kunming-Montreal Global Biodiversity Framework targets. To avoid catastrophic failure, the document calls for a systemic transformation: shifting to nature-positive food production, tripling renewable energy capacity by 2030, and redirecting the $7 trillion in annual harmful subsidies toward nature-based solutions.

The document reports that 2023 is virtually certain to be the hottest year on record, with global surface temperatures from January to November 2023 ranking highest in the 144-year record at 1.4°C above the 1881-1910 baseline. In the U.S., 25 billion-dollar weather and climate disasters occurred between January and November 2023, surpassing the previous annual record of 22 in 2020. These events caused an estimated 482 deaths and $81 billion in damages, with severe storms accounting for 76% of these disasters. The average time between such disasters in 2023 dropped to 10 days, compared to 82 days in the 1980s.