Energy & Green Tech

Push for carbon-free hydrogen accelerates in US

A source of renewable and storable energy, hydrogen is experiencing a breakthrough in the United States after years of sluggish growth as Biden administration climate policies spark major investments.

Engineering

A renewable energy-based bi-directional heat trade system

Global energy trends are shifting toward digitalization, decarbonization and decentralization. Global warming and climate anomalies attributable to environmental pollution featured in the daily news indicate that the threats ...

Engineering

Engineered wood grows stronger while trapping carbon dioxide

Rice University scientists have figured out a way to engineer wood to trap carbon dioxide through a potentially scalable, energy-efficient process that also makes the material stronger for use in construction.

Energy & Green Tech

Examining the national energy savings potential of cellular shades

Oak Ridge National Laboratory researchers demonstrated that window shades with a cellular or honeycomb structure provide higher energy savings during winter compared to generic venetian blinds and can save millions of tons ...

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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