Energy & Green Tech

A globalized solar-powered future is economically unrealistic

Over the past two centuries, millions of dedicated people—revolutionaries, activists, politicians, and theorists—have been unable to curb the disastrous and increasingly globalized trajectory of economic polarization ...

Engineering

How roads can help cool sizzling cities

Special permeable concrete pavement can help reduce the "urban heat island effect" that causes cities to sizzle in the summer, according to a Rutgers-led team of engineers.

Energy & Green Tech

Australia should learn from global hydrogen focus, report says

Countries around the world are now making rapid advances in hydrogen energy technologies and strategy—and Australia has much to learn from their experience, according to the authors of a new report by the University of ...

Energy & Green Tech

UK reaches jolly good milestone in days without coal

The UK has gone more than five days without burning coal, the longest streak without burning the fuel since the Industrial Revolution, said Bloomberg. It breaks the previous record from earlier this year, a total of 90 hours.

Engineering

Making cement sustainable

Cement production accounts for up to nine percent of global anthropogenic carbon dioxide emissions, according to the World Business Council for Sustainable Development. Sabbie Miller, assistant professor in the Department ...

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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