Category Archives: Climate change

Climate Change 2021—The Physical Science Basis

By: Jonathan Gregory, Ed Hawkins, Matt Palmer This document is a short summary of key points that are of current relevance to society from the physical science of climate change. It is based on the headline statements of the report … Continue reading

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Atmospheric CO2, fossil fuel emissions, Shared Socioeconomic Pathways and the Paris Agreement.

By: Tristan Quaife The Paris Agreement, which is signed by 193 countries belonging to the United Nations Framework Convention on Climate Change, aims to limit the rise in global mean temperature to 2°C, and ideally 1.5°C, above pre-industrial levels. To achieve … Continue reading

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The Climate Feedback: More Than The Sum Of Its Parts

By: Jonah Bloch-Johnson One of the main numbers that climate scientists use to predict global warming is the “climate feedback,” which measures how effective warming is at countering the effects of CO2. CO2 reduces how much energy the planet sheds to … Continue reading

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Forecast West Africa by Dr. Bunny Rabbit

By: Paul-Arthur Monerie References: *“Forecast” stands here for the projection of changes in precipitation at the end of the 21st century (a 40-year period average, between 2060 and 2099) relative to the end of the 20th century (1960-1999), in summer (JAS) and for … Continue reading

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Metrology, Earth Observation and Climate Data

By: Jonathan Mittaz  Metrology is the science of measurement which both defines the System International (SI, The International System of Units, 2019) as well as mathematical frameworks for measurement uncertainties (for example see the GUM: Guide to the expression of Uncertainty in Measurement, … Continue reading

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Green shoots from the grassroots at the 26th Conference of the Parties

By: Chris Merchant On the opening two days of COP26, I was in Glasgow to raise awareness of the climate and environmental data freely available from satellite observations of Earth. While the news media focus on big political headlines from COP26, … Continue reading

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Projected longer dry spells under climate change occur during dry seasons not wet seasons

By Caroline Wainwright  The latest Intergovernmental Panel on Climate Change (IPCC) report states that the global water cycle will intensify with continued global warming. This means fewer rainy days, but with more intense rain over many land regions, and more … Continue reading

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The Future of Arctic Sea Ice

By: Rebecca Frew It is well documented in scientific studies and the news (recent example here) that the summer extent of Arctic sea ice has been declining rapidly in response to global warming. As the summer sea ice shrinks and … Continue reading

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Cold Winter Weather: Despite or Because of Global Warming?

By: Marlene Kretschmer This year’s winter was cold. There was heavy snowfall across the UK, Europe and parts of the United States including Texas. This severe weather came with significant societal and economic impacts. Every time cold extremes like this … Continue reading

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Large and irreversible future decline of the Greenland ice-sheet

By: Jonathan Gregory Sea-level rise is one of the most serious consequences of global warming. By the end of this century, if emissions of greenhouse gases continue to increase (mostly carbon dioxide, from burning oil, natural gas and coal), global … Continue reading

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