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Topic Review
Global Action on SDGs
The 2030 Agenda for Sustainable Development provided brand new goals and action targets for human well-being and development, but the COVID-19 pandemic has cast a shadow on the implementation of the Sustainable Development Goals (SDGs). It is therefore essential to provide a reference for making policy adjustments and transformations to promote the realization of SDGs in the post-pandemic era. Based on a literature review of the progress and policies of SDGs across countries worldwide, we find that research on sustainable policies has rapidly increased since the SDGs issued in 2015 with particular focuses on eco-environment, sustainable policies, green economy, sanitation and health, and water sanitation. Most countries are in the process of nationalization, institutionalization, and universalization of the SDGs through incorporating the SDGs into national development frameworks, enabling extensive participation and negotiation mechanisms, and promoting the SDGs’ national publicity. Countries of different economic and institutional backgrounds demonstrate divergent development pathways, priorities, measures, and progress in the implementation of SDGs. 
  • 767
  • 08 Jul 2021
Topic Review
Global and Regional (Baltics) Carbon Dioxide Emissions
Carbon dioxide (CO2) is one of the major greenhouse gasses (GHGs), which, if released into the atmosphere, is reflecting infrared radiation back to the Earth’s surface and traps the radiant heat. Therefore, excessive CO2 emissions are of global concern as they are amongst the main contributors to climate change.
  • 406
  • 13 Apr 2022
Topic Review
Global Climate Coalition
The Global Climate Coalition (GCC) (1989–2001) was an international lobbyist group of businesses that opposed action to reduce greenhouse gas emissions and publicly challenged the science behind global warming. The GCC was the largest industry group active in climate policy and the most prominent industry advocate in international climate negotiations. The GCC was involved in opposition to the Kyoto Protocol, and played a role in blocking ratification by the United States. The coalition knew it could not deny the scientific consensus, but sought to sow doubt over the scientific consensus on climate change and create manufactured controversy. The GCC dissolved in 2001 after membership declined in the face of improved understanding of the role of greenhouse gases in climate change and of public criticism.
  • 842
  • 24 Nov 2022
Topic Review
Global Distribution of Geogenic High-Arsenic Groundwater
Groundwater constitutes a vital source of freshwater, accounting for roughly 95% of the total available freshwater resources on Earth. It is utilized not only for daily water needs but also for agricultural irrigation, industrial purposes, ecological recharge, and power generation. 
  • 310
  • 20 Feb 2024
Topic Review
Global Earth Observation System of Systems
The Global Earth Observation System of Systems (GEOSS) is being built by the Group on Earth Observations (GEO) on the basis of a 10-Year Implementation Plan running from 2005 to 2015. GEOSS seeks to connect the producers of environmental data and decision-support tools with the end users of these products, with the aim of enhancing the relevance of Earth observations to global issues. GEOSS aims to produce a global public infrastructure that generates comprehensive, near-real-time environmental data, information and analyses for a wide range of users. The Secretariat Director of Geoss is Barbara Ryan.
  • 350
  • 17 Nov 2022
Topic Review
Global Energy and Water Cycle Experiment
The Global Energy and Water Cycle Experiment (GEWEX) is a research program of the World Climate Research Programme intended to observe, comprehend and model the Earth's water cycle. The experiment also observes how much energy the Earth receives, studies how much of that energy reaches surfaces of the Earth and how that energy is transformed. Sunlight's energy evaporates water to produce clouds and rain, and dries out land masses after rain. Rain that falls on land becomes the water budget which can be used by people for agricultural and other processes. GEWEX is a collaboration of researchers worldwide to find better ways of studying the water cycle and how it transforms energy through the atmosphere. If the Earth's climates were identical from year to year, then people could predict when, where and what crops to plant. However, instability created by solar variation, weather trends, and chaotic events create weather that is unpredictable on seasonal scales. Through weather patterns such as droughts and higher rainfall these cycles impact ecosystems and human activities. GEWEX is designed to collect a much greater amount of data, and see if better models of that data can forecast weather and climate change into the future. GEWEX is organized into several structures. As GEWEX was conceived projects were organized by participating factions, this task is now done by the International GEWEX Project Office (IGPO). IGPO oversees major initiatives and coordinates between national projects in an effort to bring about communication of researchers. IGPO claims to support communication exchange between 2000 scientist and is the instrument for publication of major reports. The Scientific Steering Group organizes the projects and assigns them to panels, which oversee progress and provide critique. The Coordinated Energy and Water Cycle Observations Project (CEOP) the 'Hydrology Project' is a major instrument in GEWEX. This panel includes geographic study areas such as the Climate Prediction Program for the Americas operated by NOAA, but also examines several types of climate zones (e.g. high altitude and semi-arid). Another panel, the GEWEX Radiation Panel oversees the coordinated use of satellites and ground-based observation to better estimate energy and water fluxes. One recent result GEWEX's Radiation panel has assessed data on rainfall for the last 25 years and determined that global rainfall is 2.61 mm/day with a small statistical variation. While the study period is short, after 25 years of measurement regional trends are beginning to appear. The GEWEX Modeling and Prediction Panel takes current models and analyzes the models when climate forcing phenomena occur (global warming as an example of a 'climate forcing' event). GEWEX is now the core project of WCRP.
  • 211
  • 28 Sep 2022
Topic Review
Global Ethanol Production
Ethanol (C2H6O) is a simple liquid alcohol that is formed from the fermentation of sugars in their natural occurrences or being derived from starch-rich grains or lignocellulosic feedstocks. Ethanol is also called ethyl alcohol, grain alcohol, or simply alcohol, and is used as a disinfectant, an organic solvent, a chemical feedstock, and a transportation liquid fuel. 
  • 4.7K
  • 27 Dec 2021
Topic Review
Global Gas and Liquefied Natural Gas Markets
Market volatility is a key driver of energy security concerns. It can potentially disrupt the supply of energy resources, leading to price spikes and market imbalances. The COVID-19 pandemic has also contributed to market volatility in the energy sector, as the global economic slowdown has reduced demand for oil and gas, leading to a drop in prices. The global gas and liquefied natural gas (LNG) markets have experienced significant growth over the past few years, driven by the increasing demand from Asia and the adoption of gas in heavy-duty transport.
  • 232
  • 20 Jul 2023
Topic Review
Global Isotopic Hydrograph Separation
Isotopic Hydrograph Separation (IHS) is a novel research field that has shown a great shift in separating runoff into pre-event and event water throughout its production lifetime.
  • 697
  • 24 Sep 2021
Topic Review
Global Marine Dissolved Organic Matter
Marine dissolved organic matter (DOM) holds ~660 billion metric tons of carbon, making it one of Earth’s major carbon reservoirs that is exchangeable with the atmosphere on annual to millennial time scales. The global ocean scale dynamics of the pool have become better illuminated over the past few decades. 
  • 819
  • 15 Sep 2021
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