Energy

Which technologies will enable a cleaner steel industry?
Technologies like hydrogen-based direct reduction of ore, electrolysis, and advanced furnace technologies could reduce steel emissions.
Six innovative ways to float skyscraper-sized wind turbines
While most offshore wind farms are firmly rooted in the seabed, engineers are developing new ways to float enormous wind turbines.
Shining a light on oil fields to make them more sustainable
Sensors and analytics give oil well operators real-time alerts when things go wrong, so they can respond before they become disasters.
Solar geoengineering could cool Earth, but some regions might continue warming
Does turning the air conditioning off when you’re not home actually save energy?
Supermarket uses hydroponic farm to grow veggies onsite
The US is researching ways to block the sun
New motionless tech harnesses wind energy from rooftops
Is ancient technology better than modern air conditioning?
Meanwhile, Antarctica’s snow is turning green
New process could make plastic recycling more profitable 
New MIT system could cool buildings up to 10℃— without electricity
World’s whitest paint is now thin enough for cars, planes