In her book "Lo—TEK: Design by Radical Indigenism," designer and activist Julia Watson urges us to use millennia-old knowledge to build a world in symbiosis with nature.  Photo 2 of 8 in We May Already Have the Technology to Survive a Climate Crisis—We’ve Just Been Ignoring It

We May Already Have the Technology to Survive a Climate Crisis—We’ve Just Been Ignoring It

2 of 8

Engineering efficiency forms a double-decker root bridge. Living root bridges and ladders are better suited to the wet conditions found in this region than any artificially constructed infrastructure. After 30 years of training, the bridges can carry a load of up to 50 people.