Climate Science

Order of the National Green Tribunal regarding deterioration of Nayar river, Uttarakhand, 05/06/2025

Order of the National Green Tribunal in the matter of In Re: News Item titled "Nayar river is vanishing - a yatra reveals conservation goes beyond science and policy" appearing in ‘The Down To Earth’ dated 03.06.2025. The original application was registered suo-motu based on the news item titled "Nayar …

United in science: high-level synthesis report of latest climate science information convened by the Science Advisory Group of the UN Climate Action Summit 2019

The United in Science Report has been created by the world’s leading climate science organizations who have joined forces to produce a unified assessment in preparation for the United Nations Climate Action Summit. The report underlines the glaring and growing gaps between agreed on targets to tackle global warming and …

Approaches to communicating climatic uncertainties with decision-makers

A new guide from Future Climate for Africa highlights two approaches researchers use to communicate climate projections, and the associated uncertainties, in west and southern African contexts. These approaches include: Presenting traditional scientific data visuals using slide-sets; and Climate risk narratives or stories about possible futures, co-produced between stakeholders and …

Climate research for development in Africa using climate science to drive Africa’s development

The Assessment Reports of the Intergovernmental Panel on Climate Change (IPCC) – the body widely recognized as the international authority on climate change — give clear evidence of increased warming across Africa. The reports put forward a powerful case that increases in global temperatures are the result of human-induced climate …

Existential climate-related security risk: a scenario approach

A new report by Australian climate experts warns that "climate change now represents a near- to mid-term existential threat" to human civilization. In this grim forecast — which was endorsed by the former chief of the Australian Defense Force — human civilization could end by 2050 due to the destabilizing …

Climate cuts, cover-ups and censorship

The Climate Council’s report, ‘Climate Cuts, Cover-Ups and Censorship’ provides a detailed overview of the Australian government’s approach to climate change since the election of the Liberal-National Coalition government in 2013. The period is characterised by slashing climate science funding, cutting effective climate change programs, rejecting the expert advice of …

Climate science supports youth protests

The campaign to support the protesters has been launched by an international group of 22 scientists spanning a range of disciplines; several of them are renowned climate specialists. They include Michael Mann, professor of atmospheric science at Penn State University, US, Kevin Anderson, professor of energy and climate change at …

Solid Earth change and the evolution of the Antarctic ice sheet

Recent studies suggest that Antarctica has the potential to contribute up to ~15 m of sea-level rise over the next few centuries. The evolution of the Antarctic Ice Sheet is driven by a combination of climate forcing and non-climatic feedbacks. In this review we focus on feedbacks between the Antarctic …

Permafrost is warming at a global scale

Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial …

Prediction of the strength and timing of sunspot cycle 25 reveal decadal-scale space environmental conditions

The Sun’s activity cycle governs the radiation, particle and magnetic flux in the heliosphere creating hazardous space weather. Decadal-scale variations define space climate and force the Earth’s atmosphere. However, predicting the solar cycle is challenging. Current understanding indicates a short window for prediction best achieved at previous cycle minima. Utilizing …

Economic growth in mitigation scenarios: a blind spot in climate science

Climate change mitigation scenarios are important instruments for developing pathways towards a climate-friendly world. They form the basis for political and social negotiations regarding the climate protection measures to be adopted. Unfortunately, current mitigation scenarios follow a path of economic growth because underlying socioeconomic assumptions assume further economic growth, and …

Lessons on bridging the science-policy divide for climate change action in developing countries

This study presents a synthesis that is an attempt to learn lessons from projects conducted by the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). These projects engaged with policy makers and other stakeholders by providing climate science and spaces for dialogue between researchers and decision makers …

Britain faces hotter, drier summers and wetter winters by 2070s: research

Britain is likely to experience hotter, drier summers and warmer, wetter winters by the 2070s, as well as rising sea levels which can lead to floods, due to the effects of climate change, long-term projections by the Met Office show. To help homes and businesses plan for the future, a …

Increasing climate resilience in the Northern territory: harnessing opportunities and mitigating climate risk

This report aims to inform the development of a climate change strategy in the Northern Territory (of Australia). It serves to highlight examples of how the Northern Territory Government can mitigate climate risk and realise the significant opportunities associated with implementing climate solutions.

Near‐surface environmentally forced changes in the Ross Ice Shelf observed with ambient seismic noise

Continuous seismic observations across the Ross Ice Shelf reveal ubiquitous ambientresonances at frequencies >5 Hz. These firn-trapped surface wave signals arise through wind and snowbedform interactions coupled with very low velocity structures. Progressive and long-term spectral changesare associated with surface snow redistribution by wind and with a January 2016 regional …

Recent changes in summer Greenland blocking captured by none of the CMIP5 models

Recent studies note a significant increase in highpressure blocking over the Greenland region (Greenland Blocking Index, GBI) in summer since the 1990s. Such a general circulation change, indicated by a negative trend in the North Atlantic Oscillation (NAO) index, is generally highlighted as a major driver of recent surface melt …

Climate change adaptation: research, science and innovation

This publication presents a collection of examples of how the EU Framework Programme 7 and Horizon 2020 projects have re-aligned their objectives with those of the Paris Agreement and its 1.5°C/2°C goal. Each project has provided information on risks and impacts of global warming above 1.5°C/2°C and the costs and …

Country-level social cost of carbon

The social cost of carbon (SCC) is a commonly employed metric of the expected economic damages from carbon dioxide (CO2) emissions. Although useful in an optimal policy context, a world-level approach obscures the heterogeneous geography of climate damage and vast differences in country-level contributions to the global SCC, as well …

Projected sea level rise for Washington state: a 2018 assessment

One certainty under climate change is that global ocean levels are rising. A new report led by Washington Sea Grant and the University of Washington’s Climate Impacts Group provides the clearest picture yet of what to expect in Washington state. The report includes projections for more than 150 different sites …

Observational constraint on cloud susceptibility weakened by aerosol retrieval limitations

Aerosol-cloud interactions remain a major uncertainty in climate research. Studies have indicated that model estimates of cloud susceptibility to aerosols frequently exceed satellite estimates, motivating model reformulations to increase agreement. Here we show that conventional ways of using satellite information to estimate susceptibility can serve as only a weak constraint …

Southern Hemisphere westerlies as a driver of the early deglacial atmospheric CO2 rise

The early part of the last deglaciation is characterised by a ~40 ppm atmospheric CO2 rise occurring in two abrupt phases. The underlying mechanisms driving these increases remain a subject of intense debate. Here, we successfully reproduce changes in CO2, δ13C and Δ14C as recorded by paleo-records during Heinrich stadial …

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