A Silicon Valley startup is proposing to turn carbon dioxide emissions from coal and gas power plants into cement that can be used for everyday construction.
Critics are unsure whether Caldera, the startup, can make it a financially-feasible process.
From ASLA's blog: "Some scientists raise doubts the firm can pull it off, arguing that the idea has been explored for more than 15 years. There have been earlier failures, largely due to the costs involved. Beyond the costs of the actual process, infrastructure costs associated with scaling this up (and dealing with potentially massive amounts of that toxic acid) also need to be addressed."
Read the full story: Turning CO2 into Cement
LA’s Trees Absorb More Carbon Than Expected, But Can’t Do It Alone
A USC study finds that Los Angeles’ urban trees absorb more carbon than expected, but while they provide crucial environmental benefits, they cannot replace the urgent need for systemic emissions reductions.
The Benefits of Trees
In addition to all the economically valuable services they provide, trees are beautiful as pure aesthetic objects and a welcome presence in any landscape.
EPA: Louisiana Can Approve Carbon Capture Projects
Environmental groups worry carbon sequestration could impact water supplies and pollute the same communities already impacted by oil and gas extraction.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
California plans to bury El Niño’s downpour
If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.
Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River
Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.
Chicago voters approve permanent festival grounds, penalty for vacant property owners
Currently, major summer and fall festivals take over public parks for weeks at a time, drawing criticism from nearby residents
NYC votes to cut outdoor dining red tape, speed up permitting
New York City also voted to allow the Department of Transportation to begin work on urgent projects before notifying elected officials.
California appears to reject Prop. 45
The proposition would have expanded the projects that qualify for a streamlined environmental review, effectively paring down the California Environmental Quality Act.
FREE Course: Walkable City 1: Why Walkability?
After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.
Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold
The course focuses on the opportunities and imperatives that shape reinvention of mall sites.
City of Rosemead
Rutgers University, Edward J. Bloustein School of Planning and Public Policy
One Hundred Miles
Hunter College, City University of New York (CUNY)
The Architects Foundation
University of Cincinnati Online
City of Cambridge
Montrose County
The Pocatello Development Authority