Comments for Green Purr http://www.greenpurr.com Tue, 13 Mar 2012 17:39:16 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Weather Control? by Marc Bowes http://www.greenpurr.com/2012/03/13/weather-control/#comment-266 Marc Bowes Tue, 13 Mar 2012 17:39:16 +0000 http://www.greenpurr.com/?p=301#comment-266 Pretty sure Luke had something like this on Tatooine. Pretty sure Luke had something like this on Tatooine.

]]> Comment on Weekly Finds 3 by Helen http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-19 Helen Mon, 22 Aug 2011 06:16:54 +0000 http://www.greenpurr.com/?p=117#comment-19 Yup, much more tech development needed. Being optimistic about future developments! Yup, much more tech development needed. Being optimistic about future developments!

]]> Comment on Weekly Finds 3 by Andrew http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-15 Andrew Wed, 17 Aug 2011 13:20:30 +0000 http://www.greenpurr.com/?p=117#comment-15 Hydrogen cars do indeed sound more promising to me too - but afaik there are big hurdles to overcome, not least of which is the actual production of hydrogen which is rather inefficient and expensive. The current electric cars like the Leaf aren't very practical ...yet, but hey, gotta start somewhere! They can only improve. I'm sure the first petrol cars were pretty terrible too ;) Hydrogen cars do indeed sound more promising to me too – but afaik there are big hurdles to overcome, not least of which is the actual production of hydrogen which is rather inefficient and expensive.

The current electric cars like the Leaf aren’t very practical …yet, but hey, gotta start somewhere! They can only improve. I’m sure the first petrol cars were pretty terrible too ;)

]]> Comment on Weekly Finds 3 by Helen http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-14 Helen Wed, 17 Aug 2011 05:53:38 +0000 http://www.greenpurr.com/?p=117#comment-14 Hehe... Not sure thats going to solve much! How much does horsey fart contribute to global warming? :-) Hehe… Not sure thats going to solve much! How much does horsey fart contribute to global warming? :-)

]]> Comment on Weekly Finds 3 by Helen http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-13 Helen Wed, 17 Aug 2011 05:52:30 +0000 http://www.greenpurr.com/?p=117#comment-13 Many folks only use their cars to drive to work and back. Agreed, long distances aren't possible at the moment in electric cars. Being positive here, battery prices have got to come down eventually! Just like the base cost for the cars will too. I think hybrids would be great for the "emergency" km's needed to get to a recharging station. Hopefully electricity on the grid will be from renewable sources (super optimistic I know!) in the future, so re-charging your car from plug points will be a greener excersize too. Will be checking out hydrogen cars info. Many folks only use their cars to drive to work and back. Agreed, long distances aren’t possible at the moment in electric cars. Being positive here, battery prices have got to come down eventually! Just like the base cost for the cars will too. I think hybrids would be great for the “emergency” km’s needed to get to a recharging station. Hopefully electricity on the grid will be from renewable sources (super optimistic I know!) in the future, so re-charging your car from plug points will be a greener excersize too.

Will be checking out hydrogen cars info.

]]> Comment on Weekly Finds 3 by Irene http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-12 Irene Tue, 16 Aug 2011 19:24:47 +0000 http://www.greenpurr.com/?p=117#comment-12 Bring back the horse and cart! Bring back the horse and cart!

]]> Comment on Weekly Finds 3 by Nicole http://www.greenpurr.com/2011/08/11/weekly-finds-3/#comment-10 Nicole Sat, 13 Aug 2011 17:42:50 +0000 http://www.greenpurr.com/?p=117#comment-10 Unfortunately the Nissan Leaf is not a practical car. And here's why: - You only get 100 miles on a charge. Now, I hear the hippies shouting, "but yeah, that's great for a person who just wants to drive locally". Okay fine, but every now and then we do drive for a longer stretch and; - You cannot charge it every day. Yup, that's true. Electric cars (just like every chargeable item in you house) degenerates if you charge it after using a portion of the battery. So you basically have to drive it flat. - if you charge the car after not exhausting the battery you will bring the life of the battery down from 10yrs to 3-5yrs. Replacement costs for the battery? Approximately R100 000. I kid you not. - There are almost no charging stations in the cities of the first world countries. So if you get caught away from home, and you will... You are going to get stuck. - Electricity is mostly generated using fossil fuels. At the end of the day you are using the same product. There is good news though. Hydrogen type cars are the future. They are more user friendly. The fuel stations just have to pump hydrogen instead of fuel, which means an easier shift than installing plug in points. The by-product is water vapor. And there is absolutely no reliance on fossil fuels. Hybrid cars have already changed the way we are using our vehicles and the Prius is no longer the most efficient. The new luxury cars are driving the future of hybrids and it is truly exiting to watch the evolution happen. These are interesting times. Unfortunately the Nissan Leaf is not a practical car. And here’s why:

- You only get 100 miles on a charge. Now, I hear the hippies shouting, “but yeah, that’s great for a person who just wants to drive locally”. Okay fine, but every now and then we do drive for a longer stretch and;

- You cannot charge it every day. Yup, that’s true. Electric cars (just like every chargeable item in you house) degenerates if you charge it after using a portion of the battery. So you basically have to drive it flat.

- if you charge the car after not exhausting the battery you will bring the life of the battery down from 10yrs to 3-5yrs. Replacement costs for the battery? Approximately R100 000. I kid you not.

- There are almost no charging stations in the cities of the first world countries. So if you get caught away from home, and you will… You are going to get stuck.

- Electricity is mostly generated using fossil fuels. At the end of the day you are using
the same product.

There is good news though. Hydrogen type cars are the future. They are more user friendly. The fuel stations just have to pump hydrogen instead of fuel, which means an easier shift than installing plug in points. The by-product is water vapor. And there is absolutely no reliance on fossil fuels.
Hybrid cars have already changed the way we are using our vehicles and the Prius is no longer the most efficient. The new luxury cars are driving the future of hybrids and it is truly exiting to watch the evolution happen. These are interesting times.

]]> Comment on Carbon Guilt by Helen http://www.greenpurr.com/2011/08/03/carbon-guilt/#comment-9 Helen Mon, 08 Aug 2011 10:14:36 +0000 http://www.greenpurr.com/?p=55#comment-9 Thanks Andrew! Just checked coolearth.org out. Awesome stuff. I'm going to add a Tree Love t-shirt (ahem, size small, for anyone stuck for gift ideas reading this) to my Christmas wishlist! Thanks Andrew!

Just checked coolearth.org out. Awesome stuff.

I’m going to add a Tree Love t-shirt (ahem, size small, for anyone stuck for gift ideas reading this) to my Christmas wishlist!

]]> Comment on Carbon Guilt by Andrew http://www.greenpurr.com/2011/08/03/carbon-guilt/#comment-8 Andrew Mon, 08 Aug 2011 09:16:08 +0000 http://www.greenpurr.com/?p=55#comment-8 I always use www.coolearth.org. I will not fly unless I carbon offset in this way, helping to keep rainforests where they belong. Makes more sense to me to pay approx R800 and help keep 1 acre of rainforest in place, where up to 260 tons of Co2 is retained, plus helps to keep indigenous animal, human and plant-life intact. I always use http://www.coolearth.org. I will not fly unless I carbon offset in this way, helping to keep rainforests where they belong. Makes more sense to me to pay approx R800 and help keep 1 acre of rainforest in place, where up to 260 tons of Co2 is retained, plus helps to keep indigenous animal, human and plant-life intact.

]]> Comment on Carbon Guilt by Helen http://www.greenpurr.com/2011/08/03/carbon-guilt/#comment-6 Helen Thu, 04 Aug 2011 13:50:34 +0000 http://www.greenpurr.com/?p=55#comment-6 Thankies Pingle! Does your garden have space for anymore trees? Was thinking of doing a volunteer day with a Cape Town based co that does tree planting and veg garden startups for disadvantaged schools and communities. Maybe make it a Helen-outing? Thankies Pingle!

Does your garden have space for anymore trees?

Was thinking of doing a volunteer day with a Cape Town based co that does tree planting and veg garden startups for disadvantaged schools and communities. Maybe make it a Helen-outing?

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