Showing posts with label weather. Show all posts
Showing posts with label weather. Show all posts

Tuesday, 1 May 2012

An A to Z of Climate Matters.

April 2012. An A-Z of Climate Matters. 
There is a link in the sidebar to the A-Z blogging challenge hosted by Arlee Bird and his wonderful team.

A is for Advertising - a brief look at the methods media, vested interests and the advertising industry use to sway opinion regarding climate change rather than to share facts.
B is for Biodiversity - why it's important for our very survival on earth.
C is for Change - how we often resist it, fear it and avoid it, but how we also need to face it head on if we're to negotiate climate change and energy depletion with hope and confidence.
D is for Desertification - what can happen to lands which are overgrazed, and have every natural living thing removed for the planting of mono crops.
E is for Eat - what we choose to eat, how much, how often and where it's imported from has major implications for food security. Farting cows make their appearance here.
F is for Fracking - a method of extracting fossil fuels from deep under the earth.
G is for Greenhouse - the gasses which we're emitting into the atmosphere at such a rapid rate aren't healthy and are contributing to a toxic blend of chemicals which will last many hundreds of years. We don't breathe these easily, nor do animals. Trees that normally absorb carbon-dioxide aren't keeping up with our emissions.
H is for Health - Our mental and physical health is intricately tied with our climate. Increasingly frequent and severe weather events such as fire, drought and flood have impacts on everyone involved.
I is for Insects - We need them! Without creepy crawlies and bees, humankind is unlikely to survive. Toxic chemicals used on crops as pesticides kill not only "pests" but helpful critters too.
J is for Jellyfish - these can survive and thrive in ocean areas which have been overfished.
K is for Kilter - as in Our climate is out of kilter and so are some of our lifestyle choices.
L is for Leadership - innovative, farsighted, visionary, leaders are rare and need to be encouraged and celebrated.
M is for Mangroves - mangroves are the most interesting trees! They're salt tolerant meaning they can grow in sea water, and can deal with more carbon than any other tree.
N is for Notice - notice how you can make energy savings in your home AND save money!
O is for Oil - such a recent discovery and one which has infiltrated almost all our lives. In fact it's probably fair to say we're addicted to it and as with any addiction, breaking it could be a bit of a challenge. but it will run out, so perhaps it's not a bad idea to have a "Plan B".
P is for Plastics and Pollution - plastics are a wonderful invention, and a byproduct of oil. They're extremely handy for all sorts of things. Unfortunately products are often discarded thoughtlessly and add to the increasing problem of pollution.
Q is for Quadruple bottom line - a little bit of accounting - a different way of looking at what is valuable for businesses. Interesting rather than daunting :)
R is for Responsibility - hyper-consumption has an impact on using fossil fuels and therefore our climate.
S is for Soil - you don't have to get down and dirty to appreciate how necessary healthy soil is! Healthy soil = healthy plants. Healthy plants = healthy us.
T is for Trees - tall, majestic and leafy or stunted and straggly. No matter what they look like, trees are vital to maintain a breathable atmosphere, to stabilise soil and to assist with biodiversity.
U is for Urban heat island - cities absorb heat so people to use more air-conditioning. Greening our cities creates cooler, healthier lifestyles.
V is for Values - values underpin much of what we do and give our lives meaning. When people are out of touch with their values, their lives can lack direction and be unhappy and empty.
W is for Water - Water wars. Water disputes. Country against country, region against region. Farming, people, mining, all demanding more of this increasingly polluted vital resource.
X is for eXtreme weather - did it really take me this long to discuss weather?
Y is for Yesterday - sing the words from The Beatles song "Yesterday" to get a sense of this letter.
Z is for Zero - Zero population growth - improved quality of life for mums, children, families and communities. Enough food and water to go around. Equity and balance. So easy, yet so hard for many to accept the need for reliable modern contraception.

And now ... a well earned celebration :D

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Tuesday, 24 April 2012

Climate Matters. U is for Urban heat islands

This post is for U in the A-Z Blogging Challenge 2012. Link in the sidebar.


Central business districts in cities and dense industrial zones store heat in the buildings, roofs, roads and paved surfaces during hot days. This is called the urban heat island effect. As a result, these areas can be up to 10 degrees Celcius hotter than surrounding areas. The heat may be released slowly overnight, so they’re often warmer than less densly built up areas or parks and gardens and rural environments.
Summer heat is absorbed by dark buildings, trapped and
released back into the city at night, preventing cooling.
When we have cloudy nights, this acts as a blanket, because the tall buildings are crowded together, there are less breezes to disperse the heat, so it's trapped.

In addition emissions from vehicles, industrial activity and air conditioning vents contribute to the warming in cities. This can be welcome in cold winters, but during the summer it can leave citizens sweltering uncomfortable and for many including the elderly, young and ill it can be extremely dangerous.

It’s been suggested that reading temperatures from these unusually heated areas could distort climate data, but although some weather stations are located in cities, many are in remote locations, small towns and regional centres as well. The extensive data collected balances out any localised anomalies, and when added to data collected worldwide, there is evidence of consistent change in climate patterns over an extended period.

There’s a saying in Australia on extremely hot days “It was so hot you could cook an egg on a shovel”, and whilst that expression is unlikely to be used during a New York heat wave, it has been reported that temperatures reached on some asphalt roofs during one heat wave were almost hot enough to cook a chicken – that’s hot!
Green spaces in cities are cooling and create areas to meet friends and relax.
One simple and effective ways to cool cities, lower electricity usage and reduce the city’s carbon footprint is to plant rooftops with grasses or paint them white to reflect heat. Replanting city and urban landscapes with appropriate trees and plants is known to reduce the unpleasant sweaty and stifling effects of living in cities during heat waves. They not only add an immediate cooling effect, but encourage birds and insects and create a positive place for people to meet.

Some enterprising apartment dwellers create rooftop vegetable gardens and others use their balconies for vertical gardens for fresh herbs and vegetables giving them somewhere to use the output from their Bokashi bin and supplement their diet with fresh home-grown produce. 



Last year I wrote about the importance of Underestimating the Unrelenting nature of workplace bullying for U Here and a drabble about Unwanted attention here.


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Saturday, 14 April 2012

Climate Matters. M is for Mangroves

This post is for M in the A-Z Blogging Challenge 2012. Link in the sidebar.


Mangroves are often seen to be an expendable part of the marine environment. They don't have the majesty of towering Mountain Ash or the dramatic bark of Ghost Gums or Snow Gums. Westernport Bay in southern Victoria is home to the southernmost stands of our Earth's mangroves - the area is listed under the International Ramsar Convention for protection of migratory birds.

These mangroves are squat, insignificant, slightly muddy smelling and seem to have small crabs perpetually running around the air roots. If you happen to carelessly step off the nearby packed earth, you'll sink to your knees in none too pleasant mud which is difficult to remove. There is a strange musical sound as air pockets pop in the greyish mud.
Mangroves at Tooradin on Westernport Bay. Victoria
So, why bother agitating for them to be saved when developers move in to reclaim land or sea for refineries, housing, harbours or fish farming?

Mangroves are a salt tolerant plant and are concentrated along many coastal areas. They store a huge amount of carbon, up to 4 times more than tropical rain-forests, so when they’re cleared, carbon, which is a green house gas, is released into the atmosphere. Their complex root systems which anchor the plants into the underwater sediment and slow down the incoming tidal waters, allow organic and inorganic materials to settle and decay extremely slowly, making them in effect, a high carbon storage tank.

We need mangroves to store carbon, not to release it. 


Many animals and other creatures are dependant on mangroves to survive and are threatened with extensive clearing. Crabs, birds, insects and fish may be reliant on each other for survival, and many have adapted to the salty environment and inter-tidal changes. Mangroves provide safe breeding grounds for fish and their leaves break down providing nutrients for a variety of other creatures.
Mangroves at Tooradin on Westernport Bay. Victoria
Increasingly in Indonesia and Thailand, mangroves are being cleared for aquaculture. Many varieties of imported prawn (shrimp) are farmed in ponds and tanks, which can be fed from already stressed and overfished wild populations. Unfortunately, environmental regulations may not be stringent, so there is the potential for untreated run off and pollution being released into the already degraded local areas.

Rising sea levels, extreme weather events and storm surges impact more dramatically when the mangrove buffer has been cleared, destabilising the sand and mud. Sound planning guidelines need to be implemented to safeguard communities along these important coastlines.

By protecting mangroves, we not only capture carbon, prevent erosion, and safeguard communities, but encourage fish breeding and maintain the habitat of endangered and migratory birds, local reptiles and mammals which are threatened with extinction if the current rate of mangrove loss continues.

Last year I wrote about Mind, Mates, Movement and Manipulation for M for my theme of workplace bullying. Here.
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Monday, 9 April 2012

Climate Matters. H is for Health

This is for H in the A-Z Blogging Challenge 2012. Link in the sidebar.

We instinctively know we function better when we’re healthy, when we have hope for the future. When we feel a sense of control over our lives we show courage in the face of adversity – we feel empowered. The converse is also true, when we feel disempowered, when life feels hopeless, depression increases throughout communities.

Most people think of climate change as a purely environmental issue. But it affects more than the environment. In itself, even without being personally impacted by an extreme climate change event, knowledge about the devastating effects of extreme weather and environmental degradation can lead to depression.

Climate change also affects the fundamental requirements for health – clean air, safe drinking water, sufficient food and secure shelter.

Heat
As people in bushfire prone areas are aware, extreme heat can lead to devastating bushfires, resulting in deaths, higher pollution levels and asthma attacks as well as long term impacts as a result of trauma for those impacted directly and indirectly. Heatwaves affect health in a variety of ways - by triggering heart attacks, strokes, accidents and heat exhaustion – all potentially requiring hospitalisation. Vulnerable people such as the very young and elderly may die. High temperatures can also lead to increased pollutants in the air that afffect those with cardiovascular and respiratory diseases including asthma.

Increasing drought leads to food and water shortages. Rising temperatures and changing rainfall patterns are likely to lead to further malnutrition in many countries.
Floods
Floods can cause drownings and physical injuries, damage homes, businesses and infrastructure and disrupt all services including the supply of medical and health services. The economy is affected by lost work and school days, population displacement and disruption of transportation leading to food and fresh water shortages.

Floods contaminate freshwater supplies. Gastroenteritis and waterborne diseases such as cholera and typhoid outbreaks could also become more common because warmer temperatures would make it easier for bacteria to multiply in food and contaminated water after infrastructure has broken down due to flooding.
Residents in Townsville QLD were warned to preserve drinking water
after the devastation of Cyclone Yasi.
Diseases such as malaria, dengue fever and Ross River virus may become more prevalent as mosquitoes extend their range and flourish in a generally warmer climate and breed in stagnant water after floods. Tick borne diseases such as lyme disease are also expected to increase.

Rising sea levels and increasingly extreme weather events will destroy homes, farms, businesses, medical facilities and other essential services. More than half of the world's population lives within 60 km of the sea. People will be forced to move, which in turn heightens the risk of a range of health effects, from emotional distress to coming into contact with new diseases.
Food prices skyrocket and seaside communities are devastated
after extreme weather events worldwide.
When forests are decimated for timber, agriculture or mining, the native animals are crowded together in fragmented, smaller areas. One ill animal can infect others more easily and because they crowded together, and are closer to settlements, the disease carries far more easily and can transfer to humans easier than would be possible if their habitat was intact.

The health of the world’s people depends on truly sustainable development. This will ideally incorporate all areas of human activity and include our interactions with land, ocean and atmospheric environments to ensure that they, and we, are reslilient in the face of increasing pressure to use them with little regard for the outcomes.

Social, economic, public health and environmental needs must all be addressed in order to fully achieve sustainable progress - at local, national, regional and international levels. Policy makers, scientists, stakeholders, (including big business) and the wider public must learn to work together if we are to transition successfully through this period of climate change.

Last year I wrote about Harassment and Health for H in my theme on workplace bullying. Here.
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Tuesday, 29 March 2011

Book Review: "An Extraordinary Year of Ordinary Days".

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It was an absolute pleasure to read “An Extraordinary Year of Ordinary Days” by Susan Wittig Albert.

I felt like a trusted friend who had been invited to share this perceptive, beautifully expressed journal written during 2008 – the year Obama became president of the USA.

The journal is confronting due to the issues Albert is exploring, but unexpectedly it’s not depressing. She shares her growing awareness and concern about recession, climate change, environmental degradation, water misuse and energy depletion. But she also ponders her reactions to these issues, and contemplates how she will respond proactively. Albert is awesomely well read and includes her reading list at the end of each month for anyone wanting to further their own knowledge.

Included are quotes from her readings and press clippings about current political happenings, which gives a sense of immediacy of the unfolding political and environmental landscape. An added bonus is hearing about her life as an author, landowner and wife and the challenges she faces on those fronts as well.  Her writing is accessible and in no way intimidating, she comes across as a very aware woman who is sharing a challenging journey with us.

“An Extraordinary Year of Ordinary Days” is an excellent commentary on the current state of our world. I was so impressed, I’ve requested my local library to purchase a copy.


*I doubt that I've ever written a book review before, but I found this book to be outstanding, and wanted to share my enthusiasm. My book club mates know I'll be naturally attracted to books that are possibly 'meatier' than others enjoy, but having said that, if you are interested in what's happening with the environment, this is a good place to begin and/or extend your knowledge in a very accessible way.
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Monday, 28 February 2011

Mosquitoes have a place in the scheme of things. Really.

A friend asked on FB the other day, and I quote “These bloody mosquitoes, what use are they? What part do they play in the scheme of things?”

Quick as a flash, the responses came:
“Malaria”.
“Food for spiders”.
“To provide researchers something to study”.

Good replies all, but it got me thinking, and being of a literal frame of mind I consulted that well known academic powerhouse “Google” with "what are mosquitoes good for" and promptly came across some informative articles. None checked for authenticity, timeliness or a myriad of other things I’d insist on with students! but all with similar information.

from Wikimedia Commons
I had no idea they were so important to our survival, really those small annoying blood suckers simply seemed like, well, just plain irritating. Bzzzt, swat, bzzzt, swat, neeeeooooooow, swat, ouch, (as you whack your nose or ear) particularly when you’re trying to get off to sleep, you eventually turn the light on to try to find the little sucker, of course never can, turn the light off, and the bzzzt, swat act goes on 'till you eventually sink, exhausted into a fitful, twitchy sleep.

Mosquitoes ensure our survival
It seems however, that they’re essential to our survival on earth. I had no idea that the males, being nectar feeders, help pollinate a large variety of plants, helping out the bees in times of plenty. And yes, they do provide food, but not only for spiders, but for many other creatures as well. Bats, fish and dragonflies find them particularly tasty and their existence adds to the glorious variety and intricate web of life of which we are but a small ego centred part.

But they're nectar feeders! I think that's amazing. It's a bit like discovering that Vlad the Impaler was a sweety pie,  and had somehow just got bad press and was a bit misunderstood.

Illnesses
Interestingly mosquitoes have hit the news recently with reported cases of Ross River virus and Barmah Forest virus soaring since the flooding up in Northern Victoria. Stagnant water is the problem, and with the flood waters taking their time to recede, their numbers will only get worse over the coming months.

There have been news reports that these illnesses are also spreading further south. The female mosquito is the culprit. But given what I’ve just discovered, it seems the best thing is to get rid of stagnant water in the garden. Admittedly this is impossible in flooded areas, but important in suburbia.

In the northern areas of Australia malaria is on the rise, and we’re encouraged to tip out as much pooling water as possible from odds and ends lying around in the garden. Easier said than done with the constant rain, but good advice nonetheless.

As one writer said, there could be no flowers, fruits or songbirds without the mosquito. We just need to learn to keep ourselves safe from their bite and take precautions to discourage their spread.

So while my friend may still curse the little vampires, she’ll do it knowing how essential they are in the scheme of things.

I've written a Drabble about mosquitoes at jumpingaground.
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Saturday, 30 October 2010

I like Melbourne

I like Melbourne. It might be unfashionable, but it's a really lovely city. The drought seems to have broken, the dams are filling, there's an air of anticipation with Cup Day almost upon us. The trees are green again, (did we lose as many through drought as they expected?) and the city seems genuinely welcoming, and dare I say, during the day at least, it's a good place to visit.

There are more coffee shops and cafes than you could shake the proverbial stick at. The serviceable chains are well represented: Hudson's, Gloria Jeans, Starbucks, but more interesting are the smaller owner operators. And they offer good coffee. You want it organic? no problems. Fair Trade? just down the lane. A richer brew? over the road. You only drink soylatte? fine, that's there too. You'd like to sit outside and watch the passing parade? you'll certainly join a vibrant throng doing just the same. Yes, we're certainly well served by fabulous cafes, with some interesting graffiti to ponder when you tire of the cafe scene.




The First Tuesday in November. A date we know and love! After the lack of public holidays through winter, this one is very welcome. The boutiques are pulling out all stops to outdo their competitors, and entice the cashed up, glamorous young ladies in. But this is the first time I've seen golden rose petals complete with glitter strewn outside; surprisingly, no one had stomped on them during the frenetic lunch hour.



But alongside this commentary on coffee lover's heaven, I suppose I should mention in passing that yesterday there was a small downside.

It's spring, there was a gentle breeze, and the Plane (?) trees are showering the city in confetti seeds. It looked delightfully pretty, fluttering down in a persistent shower, sneaking under table legs, settling on the car windscreen, sneaking into underground carparks. But the citizens are suffering. Pharmacies and corner stores are stocking up on tissues and anti-allergy medications - spring fever seems to have hit big time. People are red eyed, snuffling, sneezing violently and wetly; soggy tissues abound.

It's safer to seek safe haven in the airconditioned food halls than risk a shower of sneezed droplets at an outdoor cafe on a day like yesterday, perfect as it - almost - was.

And why does Melbourne get such bad press? Because after the (almost) perfection of yesterday, today it's raining, and the forecast for tomorrow? Heavier rain. I haven't checked what they're predicting for Tuesday, but my recollection is of painful sunburn one year, and paddling in floodwater later the same day. Keep's you on your toes though don't you think?