Energy & Green Tech
The transition from fossil fuels to cleaner energies is a global pursuit. But it's faster and more intensive in some countries than others. Take the case of South Africa. Heavily dependent on coal, the country is proceeding ...
Nov 11, 2019
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Energy & Green Tech
Scientists have created an "artificial leaf" to fight climate change by inexpensively converting harmful carbon dioxide (CO2) into a useful alternative fuel.
Nov 04, 2019
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Energy & Green Tech
One way to reduce flight shame may lie in a ring of flames. And in the gas that's generated in an outhouse.
Oct 08, 2019
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Business
Employee activism and outside pressure have pushed big tech companies like Amazon, Microsoft and Google into promising to slash their carbon emissions. But there's another thing these tech giants aren't cutting: Their growing ...
Oct 02, 2019
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Energy & Green Tech
Minnesota will require car manufacturers to sell more electric vehicles in the state starting in the 2023 model year, Gov. Tim Walz said Wednesday, a move meant to reduce greenhouse gas emissions while defying the Trump administration's ...
Sep 25, 2019
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Robotics
Nearly half of the tasks currently undertaken by humans could already be automated, even at current levels of technology. Within the next decade it is likely large sections of society will be looking for new jobs.
Sep 20, 2019
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Machine learning & AI
A team of scientists has developed a computational model that uses artificial intelligence to find sites for hydropower dams in order to help reduce greenhouse gas emissions.
Sep 19, 2019
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Energy & Green Tech
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 ...
Sep 06, 2019
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Energy & Green Tech
The United States could produce enough energy each year by harnessing waste—from landfill refuse to cow manure—to power the states of Oregon and Washington, all while cutting the equivalent of 37 million cars' worth of ...
Aug 02, 2019
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Engineering
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.
Aug 01, 2019
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Energy & Green Tech
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 ...
Jul 31, 2019
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Energy & Green Tech
Drive through nearly any corner of America long enough and giant solar farms or rows of wind turbines come into view, all with the goal of increasing the country's renewable energy use and reducing greenhouse gas emissions.
Jul 30, 2019
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Energy & Green Tech
The warmer it gets, the more people crank up the air conditioning (AC). In fact, AC is booming in nations across the world: it's predicted that around two thirds of the world's households could have an air conditioner by ...
Jul 26, 2019
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Engineering
Imagine if your printer had an "unprint" button that used pulses of light to remove toner—and thereby quintupled the lifespan of recycled paper.
Jun 26, 2019
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Energy & Green Tech
While 160 companies around the world have committed to use "100 percent renewable energy," that does not mean "100 percent carbon-free energy." The difference will grow as power grids become less reliant on fossil power, ...
May 23, 2019
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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
