Energy & Green Tech

Developing the world's 'hottest' heat pump

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 ...

Energy & Green Tech

Biden plan for cleaner power system faces daunting obstacles

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.

Energy & Green Tech

EU lacking sufficient electric cars charging infrastructure

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, ...

Energy & Green Tech

Biogas from excrement to reduce environmental impact

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 ...

Energy & Green Tech

How shipping ports can become more sustainable

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 ...

Energy & Green Tech

A call for electric car charging points at home

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 ...

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Greenhouse gas

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