The Earth Working Group commonly abreviated as EWG, was a NGO founded in 2045 from a consortium of businesses, smaller NGOs and private individuals aimed at repairing Earth's ecosystem.
North Africa's Desalinators.
While the Earth Working Group healed the planet primarily by building new living systems and repairing old ones, the ocean required something more invasive. The loss of so much polar ice left Earth's oceans with dangerously low salinity, leading to extreme weather conditions and killing off all but the heartiest sea-life. Even after refreezing much of the polar cap (a process that removed a fair amount of salt simply though the hydrological process), Earth's oceans still contained too much fresh water. Draining the water directly into the Megalakes and inland seas in Africa wouldn't solve the problem, it would just move it, and leave the inland seas too brackish to support a fishing industry. As a result, a series of desalination plants were constructed along the North African Coast that would feed the temporary aqueducts fresh water for the megalakes. After 15 years, the megalakes were filled, and Earth's oceans were back to safe salinity levels.
Human Development Projects
Tokyo was probably the most devastating example of the destruction of the Flood, as the city was little more than a giant sandbar. A portion was saved thanks to hastily constructed sea walls, but a considerable portion was lost to the sea, and eroded by tidal forces. The largest reef in the world outside of the Great Barrier Reef is made up of the ruins of Tokyo. At the Geneva Peace Conference, one of the provisions to speed up Japan's surrender was that the Earth Working Group would rebuild Tokyo to house the returning Japanese citizens from the Extraterritorial Districts in Pacific Russia and China. The lost territory of the city was rebuilt literally from the bedrock up. Its practically one single structure anchored to the rock below, more than 2.5 kilometers below sea level. The original shrines and temples were recovered and preserved in their original locations in the new city, flanked by some of the tallest structures on Earth. Where the Tokyo of the 20th Century was a congested sprawl that no sane person would want to live in, the New Tokyo region is a modern mega-city with wide avenues bisecting huge towers that are cities unto themselves.