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New York City Looks to a Climate Change Future - What About Others?

March 5, 2015 - From the perspective of coastal southern Florida it takes little imagination to realize just what is at risk from rising sea levels, a consequence of global warming. The area where my...

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228 Cities Set Emission Reduction Targets - Fort Collins, Colorado Leads the...

March 29, 2015 - Before I tell you about Fort Collins, Colorado, I want to clarify a couple of points in my earlier posting today that praised the North American automotive industry for exceeding...

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Satellites Tell Us That Sea Levels Are Rising Faster Than Previously Thought

April 21, 2015 - I wonder how deeply this headline will get buried but it is one to which most of humanity need pay attention.read more

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Are 70 Cities at Risk of Running Out of Freshwater by 2040?

April 29, 2015 - The world is increasingly urbanized. In the past six decades the population of the planet has shifted with more than half of us living on less than 1% of the global land area - cities....

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Lake Mead Continues to Drop with Dire Implications for Seven U.S. States and...

May 3, 2015 - Back on April 27th I wrote a posting entitled the Colorado River Flows to Sea of Cortez as U.S. Southwest Deals with Drought.read more

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Knowing When, Where and How Extreme Weather Events Unfold is Mission Critical

September 9, 2015 - In Erik Larson's recreation of the events of September 8, 1900 in Galveston, Texas, we are immersed in a story of devastation in the face of lack of knowledge and preparation.read more

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Real Estate in Peril - Rising Sea Levels and Oceanfront Property

November 16, 2015 - My wife and I are not spending six weeks in Florida this winter. We've did this last year but frankly found ourselves bored to tears after a couple of weeks. If I hadn't had this...

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More on 3D Printing: How It is About to Transform Cities

January 5, 2016 - Today's guest blogger is Roy Rasmussen. Roy is co-author of the book "Publishing for Publicity." This is his third contribution to 21st Century Tech Blog. Roy specializes in helping...

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Capital of South Australia Launches Zero Carbon Challenge Contest

March 18, 2016 - Adelaide, a city of 1.29 million, fifth largest in Australia, is offering individual entrepreneurs a $250,000 AUD prize to reduce its carbon footprint, and create a greener...

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Smart City Challenge to Develop a 21st Century Transportation System

March 19, 2016 - Today is Earth Hour when we acknowledge our wasteful energy ways by dimming the lights at dusk for one hour from 8:30 to 9:30 p.m. Over the years it has become a bit of background...

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