Showing posts with label bushfires. Show all posts
Showing posts with label bushfires. Show all posts

Thursday, 5 April 2012

Climate Matters. E is for Eat

This post if for E in the A-Z Blogging Challenge 2012. Link in the sidebar.
(Edited Jan 2020 during the Australian Bushfire Disaster)


Food can represent many things other than simply being a substance to keep us alive. It can be an expression of love, tantalising the senses and bring a sense of wellbeing and belonging. Food can excite the taste-buds, be used to feed emptiness, pacify anger, soften hurts or ease the pain of grief.

Eating can be a supremely enjoyable experience, but is too often rushed, gulped or slurped with little focus or pleasure. Many children have no idea where food comes from, they have no idea how milk could come from a cow or that the meat they eat was once a living animal. Few of us have any idea where our wastes go, whether they are our human waste or what is discarded into a rubbish bin. That creates a massive disconnect from nature, and encourages us to live in a self centred fantasy land where our convenience is often gained at the expense of others.

Many Westerners consume convenience foods of dubious quality and nutritional value - food waste goes to landfill where it releases carbon-dioxide, further contributing to the greenhouse gas emissions in our atmosphere.

It's possible to imagine that animals are magically slaughtered because meat, which bears no resemblance to a real animal, is neatly packaged in plastic and often impregnated with chemicals to increase shelf life. Sick animals don't make good meat, so they're fed antibiotics to prevent illness. In Australia this equates to antibiotics being given to healthy animals. As in humans, this can create super-bugs, and reduces the impact of antibiotics when animals get sick.

Beef and dairy cattle and other ruminants are heavy contributors to greenhouse gas emissions. It’s estimated that it takes more of everything - water, food, fertiliser and fossil fuels to raise the same quantity of beef as wheat. Meat is a dense protein which is easy to over-consume, in contrast, eggs, grains and pulses are an excellent source of protein, and use land and water more efficiently.

Agriculture is understood to be responsible for about 14% of the world’s greenhouse gasses in the form of methane. Cows are ruminants, meaning that they have 4 stomachs to digest their food rather than in their intestines like we do. When a cow chews its cud, it's basically re-chewing its regurgitated food. The stomachs are filled with bacteria to help break the food down the process produces the gas methane which then needs to be expelled. Cows fart and burp methane which is a very potent greenhouse gas, which contributes significantly to climate change.

Given the current difficulty of feeding the world’s population, as well as issues of water scarcity, the depletion of fossil fuels and the increasing stress on farmlands, it’s likely that abundant cheap food will be less available in the future. Our increasingly unpredictable climate is producing greater extremes in weather including storms, floods and heat which will further stress the remaining arable lands.

Economic losses & increased prices due to the bushfires in Australia:
The price of vegetables is expected to jump by up to 50 per cent as catastrophic bushfires destroy crops and shut down highways while growers remain under pressure from ongoing hot and dry conditions. 
The only sealed road connecting Western Australia and South Australia — the Eyre Highway — was closed for 12 days over the New Year period, trapping trucks and travellers on either side of the Nullarbor Plain. (link)
The flow on effect from the bushfires has already had a massive impact, and it will continue for years.

Impact from the Australian bushfires on oyster farming:
"While ash debris is considerable around oyster leases in many South Coast estuaries, it is considered that runoff from fire grounds and mobilised sediments pose more of a risk for oyster health and quality," 
Impact of the Australian bushfires on bees, pollination, honey production.
it could take between five and 20 years for some flowering gums to fully recover, and to produce enough nectar and pollen to feed the bees.
One insurer alone reported beekeepers affected [by one fire] could have lost more than 6,000 hives.South Australia has reported losing 3,000 hives on Kangaroo Island and in the Adelaide Hills fires before Christmas. (note the island reburnt in January)While the beehives can be rebuilt easily, the remaining bees will be weak and hungry.

In some countries vast tracts of land are planted with mono-crops which are turned into biofuels instead of being used for food. In other parts of the world, forests are felled to grow corn and grain for sale to feed chickens, pigs and cattle instead of the local populations.

Fish populations are increasingly stressed due to overfishing and environmentally-destructive fishing methods. This also impacts on the ability of future generations to have reliable, safe seafoods.

The world's food systems need to be sustainable and equitable for all, not skewed unfairly and unethically towards greedy over consumption. How we eat, how often, and what kind of food is not a choice for much of the world’s population.

Last year I wrote about Ethical behaviour for E in my theme of workplace bullying. Here
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Monday, 2 April 2012

Climate Matters. B is for Biodiversity.

This is the post for B in the A-Z Blogging Challenge 2012. Link in the sidebar.
(Updated Jan 2020 during the Australian bushfire disaster)

“In the last 500 years 844 plants and animals had become extinct because of the rising global population, habitat damage and change, over exploitation, the introduction of alien species and climate change. About 6 million hectares of primary forest are felled each year and about one-third of all mangrove swamps have been lost since the 1980’s. Up to 52% of the species of birds studied face possible extinction.” (p334 Designing 2050 Peter Ellyard)

What is biodiversity? Does it matter? If so, why?

As with everything else related to climate matters, there are layers upon layers of complexity ranging from degradation of forest systems to global economics and medicines, the drug trade and displacement of small communities living deep within the Amazon and elsewhere.

Biodiversity provides the basis for all life on earth. Healthy ecosystems in remote, far flung places of the world support our economic and social development, and are vital to our health and well-being. When our lives are sheltered from nature, it’s easy to take our natural world for granted and possibly even dismiss it as unimportant. Other than providing food and water, many everyday items come from nature including building materials, fibers, dyes, rubber and oil. We’d be lost without them.

Healthy biodiversity and sound ecosystems support and maintain clean water and clean air. They impact on our climate. Pollination (usually by bees) is vital for crop success, and healthy soil structure helps prevent erosion and desertification. These are no small matters. They are vital to the well-being and security of all people, not just in developing countries.

There are significant benefits to biodiverstiy and healthy ecosystems that are hard to put a dollar value on - though many economists are beginning to factor in benefits such as spiritual and aesthetic values. Leisure and holiday activities such as hiking, birdwatching or natural history study are a joy for many people.

Biodiversity supports psychological health, inspires musicians, painters, photographers, sculptors, writers and other artists. How drab life would be without these things to transport us into a different realm.

To continue living on planet Earth, we need to have long term respect for, and encourage global efforts to support optimum health of our diverse ecosystems. Corporations worldwide need to take their responsibilities as stewards of complex ecologies seriously, and with a view to the future of mankind.

Conservation, and the risks associated with biodiversity loss and ecosystem disturbance is a far wider issue than dismissively labelling those who take an interest as radical greenies. It underpins our very existence. Climate change is affecting the diversity of species, but our destructive habits are also contributing massively.
Loss of frogs is often associated with stressed habitats.
What are the long term chances of survival for species that were already struggling with the effect of drought, deforestation & malnutrition prior to the Australian Bushfires ?

“There are /habitats that are burning that we didn’t think should or would ever burn,”/. The subtropical rainforest on the border of Queensland and New South Wales “is not a flammable habitat. It’s evolved over many millennia without fire, and a lot of the species there aren’t resilient.”

Last year I wrote about what constitutes Bullying for B in my theme of workplace bullying. Here
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