Energy & Green Tech
The heat pumps we use to heat our homes and domestic water operate at temperatures of between 30 and 60 degrees, but many industrial processes require much higher temperatures—and some industries require an entirely different ...
Apr 28, 2021
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Energy & Green Tech
If the nation is to meet President Joe Biden's goal of cutting America's greenhouse gas emissions in half by the end of the decade, it will have to undertake a vast transformation toward renewable energy.
Apr 27, 2021
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Energy & Green Tech
In line with its ambition to make Europe a greener place, the European Union wants to drastically reduce gas emission from transport by 2050 and promote electric cars. But according to a report from the bloc's external auditor, ...
Apr 13, 2021
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Energy & Green Tech
Coordinated management of excrement from animals and humans could save nearly EUR 100 million each year. The key is to produce the biogas from the excrement before it is used as fertilizer. In addition, Sweden could reduce ...
Apr 13, 2021
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Engineering
Ships have a significant environmental impact during building, operation and when they're scrapped, but new approaches and composite materials to replace steel—still popular due to its strength and low cost—could make ...
Apr 13, 2021
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Energy & Green Tech
Marine shipping drives 90 percent of global trade, moving over 11 billion tons of containers, solid and liquid bulk cargo across the world's seas annually. Almost all consumer products we buy—or the raw materials required ...
Mar 26, 2021
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Energy & Green Tech
Thousands of panels glinting in the sun stretch into the sea off Singapore, part of the land-scarce city-state's push to build floating solar farms to cut greenhouse gas emissions.
Mar 07, 2021
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174
Energy & Green Tech
Every year, hundreds of millions of tons of CO2 are emitted through maritime transport, causing serious harm to the climate. As scientists around the world test new propulsion methods capable of replacing fuel oil in ships, ...
Mar 01, 2021
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Energy & Green Tech
One of the many changes needed for Switzerland to eliminate greenhouse gas emissions is to make its road mobility electric, with sales on new internal combustion engine (ICE) vehicles to cease by 2030 or soon after. As numerous ...
Feb 26, 2021
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Energy & Green Tech
As the recent disaster in Texas showed, climate change requires electricity utilities to prepare for extreme events. This "global weirding" leads to more intense storms, higher wind speeds, heatwaves and droughts that can ...
Feb 25, 2021
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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".
This text uses material from Wikipedia, licensed under CC BY-SA
