Cities cover just 3% of the planet. But they emit 78% of all global greenhouse gas emissions, absorb 80% of final global energy (what consumers use) and consume 60% of clean drinking water.
Environment
54 minutes ago
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New research has found a "missing piece of the puzzle" of West Antarctic Ice Sheet melt, revealing that the collapse of the ice sheet in the Ross Sea region can be prevented—if we keep to a low-emissions pathway.
Earth Sciences
Apr 23, 2024
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The global food system produces enough food for everyone, yet, in 2023, 333 million people worldwide were food insecure and 783 million were chronically hungry. An estimated 1.3 billion tons of food—14% of all produced—is ...
Environment
Apr 22, 2024
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In Mali's capital Bamako, Aboubacar Pamateck runs a scarf under a trickle of water and wraps it around his head to cope with the West African nation's soaring heat.
Environment
Apr 21, 2024
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Climate change caused by CO2 emissions already in the atmosphere will shrink global GDP in 2050 by about $38 trillion, or almost a fifth, no matter how aggressively humanity cuts carbon pollution, researchers said Wednesday.
Environment
Apr 20, 2024
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The Scottish government has rescinded its 2030 target of a 75% emissions cut to greenhouse gas emissions, relative to 1990. The target was statutory, meaning it had been set in law in the Emissions Reduction Targets Act of ...
Environment
Apr 19, 2024
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The fourth global coral bleaching event, announced this week, is an urgent wake-up call to the world.
Plants & Animals
Apr 17, 2024
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University of Toronto (U of T) scientists have developed a framework for measuring plastic pollution emissions akin to the global standard for measuring greenhouse gas emissions. The researchers say the approach will boost ...
Environment
Apr 16, 2024
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Far more methane, a potent greenhouse gas, is being released from landfills and oil and gas operations around the world than governments realized, recent airborne and satellite surveys show. That's a problem for the climate ...
Earth Sciences
Apr 16, 2024
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Soil organic matter (SOM) decomposition is a key process that affects soil carbon storage and greenhouse gas emissions. Investigating the temperature sensitivity (Q10) of SOM decomposition and its regulating mechanisms is ...
Ecology
Apr 15, 2024
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Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. Common greenhouse gases in the Earth's atmosphere include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In our solar system, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would be on average about 33°C (59°F) colder than at present.
Human activities since the start of the industrial era around 1750 have increased the levels of greenhouse gases in the atmosphere. The 2007 assessment report compiled by the IPCC observed that "changes in atmospheric concentrations of greenhouse gases and aerosols, land cover and solar radiation alter the energy balance of the climate system", and concluded that "increases in anthropogenic greenhouse gas concentrations is very likely to have caused most of the increases in global average temperatures since the mid-20th century".
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