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Climate Central argues that the Department of Energy (DOE) report, “A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Climate,” fails to represent the scientific consensus and should not serve as a policy basis. The organization asserts that the DOE report selectively ignores two decades of scientific developments and omits major international assessments. Specifically, Climate Central contends that the DOE understates the link between human-caused climate change and the increasing intensity, rainfall, and rapid intensification of hurricanes, as well as the acceleration of sea-level rise. It further argues that the DOE's analysis of temperature extremes is misleading by focusing on the 1930s Dust Bowl era without global context and that its assessment of wildfires in the western U.S. is incomplete. Finally, the document disputes the DOE's claims regarding solar variations and the validity of extreme event attribution (EEA) methodologies, while arguing that the DOE's use of GDP to downplay disaster costs ignores the increasing physical hazards of climate change.

The briefing argues that deep-sea fish populations in European waters are either depleted or lack sufficient data for assessment, making them exceptionally vulnerable to over-exploitation due to slow growth and late maturation. It criticizes EU and UK ministers for setting fishing opportunities above precautionary scientific advice from ICES and STECF. The document recommends setting fishing opportunities below single-stock advice, implementing zero-catch Total Allowable Catches (TACs) for endangered species like roundnose grenadier, and enhancing the protection of Vulnerable Marine Ecosystems (VMEs). It emphasizes that these measures are necessary to meet obligations under the EU deep-sea fisheries Regulation 2016/2336, the UK Fisheries Act, and UN General Assembly standards.

The report examines non-CO2 aviation effects, specifically contrails, which contribute to surface warming at a rate potentially similar to CO2 emissions. It evaluates three primary mitigation strategies: reducing aromatics in conventional fuel, increasing SAF adoption, and implementing flight path deviations to avoid ice-supersaturated regions (ISSR). While fuel hydrotreatment can reduce soot, the report warns that the energy-intensive process may increase CO2 emissions, potentially offsetting climate gains. SAF is presented as a more effective long-term solution, with targeted use on high-impact flights offering 9-15 times the benefit of low-level global blending. Operational mitigation via AI and satellite-based re-routing shows promise, though it faces challenges from air traffic congestion and weather forecasting inaccuracies. The document concludes that a combination of these technologies and specific non-CO2 policies is necessary to reduce the sector's total climate impact.

The study analyzes nearly six years of data from pressure-equipped inverted echo sounders (PIESs) to determine the transport characteristics of the Deep Western Boundary Current (DWBC) at 34.5° S. It finds that the time-mean absolute geostrophic transport is -15 Sv, but the variability is extreme, with a peak-to-peak range from -89 to +50 Sv. This high level of variability, which exceeds the time mean, suggests the influence of coherent vortices or Rossby Wave-like signals.

The report finds that human-induced climate change increased the intensity and likelihood of heavy rainfall associated with Hurricane Milton in central Florida. Using the IRIS model, the analysis indicates that climate change increased the frequency of storms with Milton's wind speeds by approximately 40%, meaning the storm would have likely made landfall as a Category 2 rather than a Category 3 hurricane without global warming. Additionally, sea surface temperatures along Milton's track were 1°C warmer than in a world without climate change, making such temperatures 400 to 800 times more likely. The report also assesses Florida's adaptation measures, noting that while building codes are among the toughest in the US, the state's planning remains largely reactive and fails to adequately address social vulnerabilities in low-income and minority communities.

The project focuses on enhancing disaster prevention in the Eastern Pacific by reconstructing historical cyclone records, studying lightning as a proxy for intensification, and utilizing high-resolution ocean and atmospheric models (HWRF) to improve storm surge and track forecasts.

The study examines compound flooding in Halmstad, Sweden, identifying a correlation between river discharge and sea level annual maxima driven by the North Atlantic Oscillation (NAO). Future compound flooding risks are projected to be primarily driven by mean sea level rise and secondarily by increased mean river discharge.

Hurricane Beryl, the earliest Category 5 hurricane on record, was fueled by ocean temperatures 2°–3°F warmer than normal, conditions made 100–400 times more likely by human-caused climate change.

Global sea surface temperatures reached unprecedented levels from April to July 2023, driven primarily by human-caused carbon pollution and El Niño. This warming increases the likelihood of rapid intensification in hurricanes and causes severe heat stress for coral reefs, particularly around Florida and the Caribbean. The document highlights that 48% of the global ocean experienced marine heat waves in July 2023, and warns that 70–90% of tropical coral reefs could disappear even if warming is limited to 1.5°C.

The document describes the ocean as the planet's largest carbon sink, sequestering approximately 26% of human-released CO2 annually. It details the biological and physical carbon pumps, the role of large marine mammals and coastal ecosystems in 'blue carbon' storage, and evaluates emerging geoengineering approaches for carbon dioxide removal (CDR). The brief emphasizes that while ocean-based solutions build resilience and biodiversity, they must be paired with rapid emissions cuts to effectively slow global warming.

The document traces the path from the 1972 Stockholm Conference to the 2017 entry into force of the Minamata Convention on Mercury. It highlights the role of activism and scientific evidence in driving global action and details the treaty's mechanisms for phasing out mercury-added products and regulating artisanal and small-scale gold mining (ASGM). The brief also explains that the discrete nature of mercury's industrial sources and a stronger scientific consensus on its global threat allowed it to move toward a binding treaty, whereas lead and cadmium remain managed through voluntary partnerships and regional agreements.

The document reports that while the total number of hurricanes is not increasing, the probability of storms reaching major hurricane status (Category 3-5) has risen significantly, particularly in the North Atlantic. It attributes this trend to rising sea surface temperatures and atmospheric warming, which also contribute to heavier rainfall, slower storm speeds, and deeper coastal flooding due to sea level rise.

The document frames climate change as a form of 'climate debt' where the true cost of pollution is shifted to future generations and society. It highlights the economic impact of extreme weather, noting that the 2017 North Atlantic hurricane season caused $215 billion in losses. To address this, the author advocates for increasing the coverage and level of carbon pricing globally to ensure emitters face the full cost of their pollution, thereby reducing greenhouse gas emissions and funding adaptation for vulnerable communities.

The North Pole experienced unprecedented warmth in November and December 2016, with temperatures reaching 15 ºC above normal on November 11. Analysis using historical observations and climate models (CMIP5 and Weather@Home) indicates that such an event would have been extremely unlikely—with a probability of less than 0.1 percent per year—in a climate without human-induced greenhouse gas emissions and aerosols. The study highlights that Arctic amplification, driven by albedo-feedback and lapse-rate feedback, makes the region the fastest-warming on Earth. Under a high-emissions scenario (RCP8.5), such extreme heat events are projected to become commonplace by approximately 2047, corresponding to a global mean temperature increase of 2 to 3 ºC above pre-industrial levels.

The document argues that while climate change does not cause hurricanes, it fuels stronger North Atlantic storms and increases their damage through sea level rise and heavier rainfall. It highlights specific risks to US military installations, power grids, and historic sites, while noting that low-income and minority communities face disproportionate hazards and recovery challenges.

The document details how Hurricane Sandy and rising sea levels caused extensive damage to the Statue of Liberty and Ellis Island in 2012, resulting in an estimated $77 million in losses and significant economic disruption to tourism. It explains that sea levels in the New York area have risen by over 1.5 feet since the 1850s, exacerbating storm surges. In response, the National Park Service is implementing resilience measures, such as elevating electrical systems up to 20 feet, as part of a broader effort to manage climate change risks for coastal properties.

The Cape Hatteras Lighthouse in North Carolina was moved inland in 1999 to prevent it from being lost to the sea due to coastal erosion and sea level rise. The structure, weighing over 4,800 tons, had seen its distance from the ocean shrink from 1,500 feet at construction to 120 feet by the end of the twentieth century. This relocation serves as an example of the 'hard choices' required to protect historic sites as sea levels in the Outer Banks rise two to three times faster than the global average and Category 4 and 5 hurricanes in the North Atlantic have roughly doubled since 1970.

The Living Blue Planet Report 2015 documents a 49% decline in global marine vertebrate populations between 1970 and 2012. It highlights critical losses in key habitats, including over half of reef-building corals in tropical reefs over 30 years and nearly 20% of mangrove cover between 1980 and 2005. The report identifies overfishing, climate change, pollution, and extractive industries as primary drivers of this degradation. It emphasizes the socio-economic risks, noting that nearly 3 billion people rely on fish as a major protein source and that the ocean generates at least US$2.5 trillion in annual economic benefits. The document advocates for the 'One Planet Perspective' framework, which includes expanding Marine Protected Areas (MPAs) to 30% to potentially generate up to US$920 billion by 2050.

The project seeks to extend the historical record of landfalling cyclones back to 1500, investigate lightning as a proxy for intensification, and utilize high-resolution ocean and atmospheric models (HWRF) to improve storm surge and track forecasts. Initial findings indicate that lightning distribution differs between westward-tracking cyclones and those that re-curve and make landfall, with the latter showing more lightning in outer bands. Preliminary HWRF simulations at 3-km resolution still exhibit significant errors in track, intensity, and landfall location.

The document analyzes a spectrum of decision-making models in international law, ranging from strict consensus to majority voting, to identify effective procedures for managing highly migratory fish stocks in the Western and Central Pacific.