World-renowned environment experts have proposed a system of huge tubes placed in the world's oceans that would cycle nutrients to encourage booms in the population of algae -- organisms that naturally consume and sequester carbon.
"James Lovelock, the author of Gaia, and Chris Rapley, newly appointed director of the Science Museum in London, have outlined a plan to dot the world's oceans with 200-metre tubes which would bring nutrients from the deep up to the surface, encouraging algae to bloom. This would suck carbon dioxide out of the atmosphere and lock it away."
"In a letter to the journal Nature, Profs Lovelock and Rapley said the Earth was fast becoming hotter than anything experienced by humans and international inertia in dealing with the problem made it doubtful that attempts to limit carbon emissions would have much impact."
"Their proposal involves using free-floating or tethered vertical pipes which would mix nutrient-rich deep water with the relatively barren water at the oceans' surface. 'Water pumped up pipes - say, 100 to 200 metres long, 10 metres in diameter and with a one-way flap valve at the lower end for pumping by wave movement - would fertilize algae in the surface waters and encourage them to bloom.'"
FULL STORY: How sea tubes could slow climate change

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Vehicle-related Deaths Drop 29% in Richmond, VA
The seventh year of the city's Vision Zero strategy also cut the number of people killed in alcohol-related crashes by half.

As Trump Phases Out FEMA, Is It Time to Flee the Floodplains?
With less federal funding available for disaster relief efforts, the need to relocate at-risk communities is more urgent than ever.

A Case for Universal Rental Assistance
A pair of researchers argues that expanding rental assistance programs for low-income households is the most effective way to alleviate the housing crisis.

Office Conversions Have Increased Every Year This Decade
Since the pandemic, office vacancy rates remain high, leading many cities to adjust zoning codes to accommodate adaptive reuse.

Index Measures Impact of Heat on Pedestrian Activity
When heat and humidity are high, people are more likely to opt for cars when possible.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
JM Goldson LLC
Custer County Colorado
Sarasota County Government
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Camden Redevelopment Agency
City of Claremont
Municipality of Princeton (NJ)