AskPablo: Helicopter Emissions

This week I was asked by George about helicopter emissions. Recently Astrum Helicopters announced that they will be offering helicopter adventures and direct helicopter transfers to Chaa Creek, an award-winning eco-resort in Belize. To my reader it seemed contradictory to the mission of a Green Globe benchmarked resort to use helicopter transportation due to the … Continued

AskPablo: The Northwest Passage

This week a reader asks about how much the now open Northwest Passage will save in shipping emissions. This year, for the first time in recorded history, the Northwest Passage has become fully ice-free. This means that this Northern sea route around the Americas is now fully navigable, and will become increasingly so over the … Continued

Greenbiz Sustainable MBA Column: Sustainability in the Workplace by Pablo Paster

While the business world is abuzz with talk of green and sustainable business practices, it’s important to remember that workplace sustainability goes far beyond switching out light bulbs and turning down the thermostat. Sustainability has both internal and external drivers and spans environmental and social dimensions. Below are a few key points to take into … Continued

AskPablo: Iceberg Water

After seeing images of the melting Greenland Icecap on television this weekend my mother asked me if it would be economical to collect that water and deliver it to drought stricken regions. After my posting on bottled water (AskPablo: Exotic Bottled Water) many of you know that I am generally not a fan of shipping … Continued

AskPablo: Coal-Fired Power Plants

This week I am going to examine the world of coal-fired power plants. Coal is an energy-dense substance found deep underground. Like oil and natural gas it is made from prehistoric organisms and biomass under intense heat and pressure. The living precursors to these fuels sequestered CO2 from the atmosphere, as plants do today, and … Continued

AskPablo: Wave Power

August 13th’s article on desalination received a lot of great feedback. On reader informed me of a technology that uses wave power to pump sea water, at high pressures, through a reverse-osmosis filtration system, using virtually no fossil fuel-based energy. He also informed me that the same technology is being used to pump seawater uphill … Continued

AskPablo: Commuting

This week Calvin Tran wrote to AskPablo about commuting. He wrote: “I spend a lot of time in traffic because of bottlenecks in the highway system (three lanes going to two lanes). How much gas (and $) could be saved in removing these bottlenecks?” What a great question. I have been pondering this on my … Continued

AskPablo: Desalination and the Water-Energy Relationship

This week Gary writes “my city is considering a desalination plant to provide drinking water. I have heard that desalination is very energy intensive. How does it compare to delivering water by pipe?” Luckily I recently came across a report that will help me answer this question.

AskPablo: Is this a god dam?

This week I got an e-mail from Ken. He wants to harness the creek on his property to become more energy independent and lessen his personal impact on global climate change. I am going to examine the variables that will determine if Ken should go ahead with this project, and how much it might cost … Continued

AskPablo: Land Use Changes

This week Tyler asks: “What is the climate change impact from deforestation, land-use changes, and reforestation?” This topic is quite relevant these days because many carbon offset organizations offer to plant trees to mitigate your personal carbon emissions. Are you really getting what you pay for? And what is the impact of cutting down a … Continued

AskPablo: Black Google

This week’s question comes from Julia. She asks “is it really true that a black Google page would save energy?” She is, of course, referring to a very popular article written by Mark Ontkush back in January. He claims that turning the Google page black would save 3000 MWh per year! As a result, Blackle … Continued

AskPablo: Time to get a new car?

This week David asks “how much more energy efficient does a new car have to be to make up for the energy of production vs a used car? For example, if someone was considering buying a used car that gets 18 mpg vs. a new car that gets 30 mpg. At what point in driving … Continued

AskPablo: City Living

Some time ago someone asked me if it is better for the environment to live in a city, or out in the country. I didn’t have an answer at the time, but I do now…

AskPablo: Corn-Based Ethanol

Jason keeps bugging me about my take on the issue of corn-based ethanol. This week I am finally going to take this one on. My gut feel is that it is the devil. Producing an energy-intensive crop that could feed starving people around the world (or at least feed the livestock that will become my … Continued

AskPablo: CO2 from Beer

Have you ever wondered about the carbon emissions generated from making your favorite brewsky, bottle of vino, or 15 year-old Talisker Scotch? Never mind the impact from producing the bottles, shipping the product, or the farm impact–I’ve written about those before (See: AskPablo: Exotic Bottled Water, AskPablo: Glass vs. PET Bottles, and AskPablo: Foodmiles) But … Continued