An aerial view of the NELHA facilities in Kona, Hawaii. Makai has installed undersea pipelines that descend to 915 m (3,002 ft) water depth at a temperature of 4° C (39° F).

Seawater Air Conditioning (SWAC) takes advantage of available deep cold water from the ocean, a river, or lake, to replace conventional AC systems. Such a system can also utilize cold lake or river water as the cold source.

SWAC feasibility studies for a variety of sites indicate that electrical consumption is typically reduced by 80 to 90 percent. Simple payback can be from three to seven years, and long term costs can be half that of a conventional air conditioning system.

He still has $112 billion. Bill Gates took the first steps toward donating $20 billion of his wealth to the Bill and Melinda Gates Foundation (B&MGF), giving away shares worth $6 billion this week, Business Insider reported.

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Bill Gates is still the world’s fifth-richest person, according to Bloomberg and Forbes rankings, despite giving away shares worth more than $6 billion this week to his charitable foundation.

Gates donated close to $5.2 billion worth of stock in Canadian National Railway Co to the Bill & Melinda Gates Foundation, SEC filings show.

The Microsoft co-founder also gave away $995 million worth of shares in Deere & Co. to the foundation on Thursday, filings from Friday show.

Here are 10 fascinating images that show how massive the Great Pyamid of Giza trully is. The builders used 2.3 million stones to build the Great Pyramid.

Here are some ways to make your screen time work best for you.

Joshua Miele, who builds adaptive technologies at Amazon, is part of a generation of leaders who are reshaping the world and have roots in The Cave, a basement hideaway at UC Berkeley that nurtured blind innovators.

Despite a recent resurgence, Brutalist architecture has divided opinion for years.

Mammoth redwood trees have evolved along with fire, but humans are disrupting that delicate balance.