Posts Tagged ‘rainfall’

Monday Moaning

This is a stinker!

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Geo-engineering: Climate fixes ‘could harm billions’

Using aerosols to block solar radiation represents one approach to geo-engineering

Schemes to tackle climate change could prove disastrous for billions of people, but might be required for the good of the planet, scientists say.

That is the conclusion of a new set of studies into what’s become known as geo-engineering.

This is the so far unproven science of intervening in the climate to bring down temperatures.

These projects work by, for example, shading the Earth from the Sun or soaking up carbon dioxide.

Ideas include aircraft spraying out sulphur particles at high altitude to mimic the cooling effect of volcanoes or using artificial “trees” to absorb CO2.

Long regarded as the most bizarre of all solutions for global warming, ideas for geo-engineering have come in for more scrutiny in recent years as international efforts to limit carbon emissions have failed.

Now three combined research projects, led by teams from the universities of Leeds, Bristol and Oxford, have explored the implications in more detail.

The central conclusion, according to Dr Matt Watson of Bristol University, is that the issues surrounding geo-engineering – how it might work, the effects it might have and the potential downsides – are “really really complicated”.

Sun block

Injecting aerosols into the stratosphere mimics the cooling effects of volcanoes

“We don’t like the idea but we’re more convinced than ever that we have to research it,” he said.

“Personally I find this stuff terrifying but we have to compare it to doing nothing, to business-as-usual leading us to a world with a 4C rise.”

The studies used computer models to simulate the possible implications of different technologies – with a major focus on ideas for making the deserts, seas and clouds more reflective so that incoming solar radiation does not reach the surface.

One simulation imagined sea-going vessels spraying dense plumes of particles into the air to try to alter the clouds. But the model found that this would be far less effective than once thought.

Another explored the option of injecting sulphate aerosols into the air above the Arctic in an effort to reverse the decline of sea-ice.

A key finding was that none of the simulations managed to keep the world’s temperature at the level experienced between 1986-2005 – suggesting that any effort would have to be maintained for years.

More alarming for the researchers were the potential implications for rainfall patterns.

Although all the simulations showed that blocking the Sun’s rays – or solar radiation management, as it is called – did reduce the global temperature, the models revealed profound changes to precipitation including disrupting the Indian Monsoon.

But blocking the Sun’s rays could have undesirable effects, such as disrupting the Indian Monsoon

Prof Piers Forster of Leeds University said: “We have found that between 1.2 and 4.1 billion people could be adversely affected by changes in rainfall patterns.

Source: BBCNews Read more

Opinion:

And… they don’t even know if it will work.

And… what do they mean by ‘harm billions’? Just what does ‘harm’ or ‘adversely affect’ mean? Are they euphemisms for ‘kill off’?

I know the world has about 14x more people than the planet can support, but are there plans afoot to reduce the world’s population by between 1.2 and 4.1 billion people?

This could be a real horror story!

Change the World Wednesday – 5th Nov

guavabuds

Buds on Clorinha’s guava tree

I’m not really ready to do this post, it’s 10 o’clock and already I am sweating.

I need more coffee, but it’s too hot to use the stove.

In Rio de Janeiro we are approaching 110 days without meaningfull rain. Really that is a drought, when we should be having the daily spring rains

The plants in the praça are wilting badly. I have just taken a bucket of water over to the patch of bushes in front of my house and poured a jug of water at the base of some.

I water Clorinha’s guava tree daily, and it is thriving, it even has the buds of four blossoms developing.

If the small bushes respond to my water, I’ll do it again tomorrow.

The heat of the past weeks has become oppressive, broaching 40ºC (106ºF) daily, with the thermal index even higher.

São Paulo had a lot of rain over two days, but not enough to fill the reservoirs, just enough to stop them from getting any lower.

The bushes are wilting sadly

The bushes are wilting sadly

Click the banner for full post

Time to move on with this week’s CTWW on laundry detergent.

This week, please do an honest review of the laundry detergent that you are currently using. Do a little research on the list of ingredients to find out which are safe and which are not. Talk about how the product performs, especially in cold water. What kind of packaging does it come in. How does the price rank compared to other brands. If you’d like to mention the brand, please do so. The idea this week is to share information on laundry detergents so that we all benefit.

I am currently using Ypê. Although I sometimes use Ariel, the deciding factor is the price.

And, I admit that I haven’t given a thought about what’s in it.

soapboxSo, let’s have a look. Wow, the printing is so small I can’t read it even with my glasses. I had to take a photo to see it clearly on screen.

Okay, so the content is listed in Portuguese, English and Spanish.

OMG! I just had a FireFox crash… luckily it restored my post.

  • Anionic surfactant – biodegradable surface acting agent that lowers surface tension
  • Suspending agent – helps to active pharmaceutical ingredients stay suspended in the washing water.
  • Chelant is basically a natural water softener like citric acid
  • Alkaline agent – is actually delicate laundry detergent; specially formulated with Polymer-A (an anti-redeposit agent)
  • Inorganic salt
  • Optical brightener – synthetic chemicals added to liquid and powder laundry detergents to make clothing appear whiter and brighter, and thus cleaner. May be potentially toxic to humans and “Aminotriazine- or stilbene-based whiteners…may cause developmental and reproductive effects.”
  • Active Ingredient: Linear alkylbenzene sulphonate – rapidly biodegrades, but initially toxic to fish. (See note anionic surfactant above)

NB: the Portuguese list does not equate with the English translation.

Many Brazilians use cloro (chlorine) to soak clothes before hand washing. I have found that this practice rots the material and reduces the life of garments.

My big beef, is that they use generic terms for the ingredients, and not specific terms that can be identified.

Brazilians basiclly don’t give a shit about this information, besides, if they did, generally they don’t have the education to remotely understand it. Which, of course, suits the manufacturers fine.

From my point of view, I am really none the wiser. I have understood that some of the ingredients are basically not so good for the environment, but because of the generic names I can’t pursue the matter and be more specific.

But it has prompted me to buy Ariel next time and compare the ingredients.

Both are usable in cold water and come in a cardboard box with some kind of glossy lining.

That’s my lot for the day.

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