Posts

Showing posts with the label Sustainability

We Love Bees

Image
While it is well known that bees produce honey, many other food sources also rely on bees. Conservative figures show that bees pollinate at least ONE mouthful in every THREE that we eat! Bees around the world, including in Australia, are in serious trouble. Overuse of pesticides and herbicides make bees more vulnerable to disease and pests. Modern agricultural practices and urbanisation are greatly reducing bee habitat and food sources. Scientists are seeing a large decline in bee populations worldwide. This poses a threat not only for our food production but our environment as a whole, as flowering plants rely on pollinators to survive. The good news is we can all do things to help ensure the survival of bees! Waggle dance is a term used in beekeeping and ethology for a particular figure-eight dance of the honey bee. By performing this dance, successful foragers can share information about the direction and distance to patches of flowers yielding nectar and pollen, to wa...

Writing Exercise - The City

According to the World Wildlife Fund (WWF) Sweden  "Most people live in cities, and thus most energy is consumed there, at the same time there is not sufficient space around cities in which to produce the energy, food and materials these cities need. People in the richer parts of the world use more land area for energy consumption than their equitable share." We can begin talking about the city from the local part of it you spend most of your time. Think about the area you live in a spend most of your time. Do you know it's history? How many people live there? How is it for public transport? Does everyone drive cars? Where does the water come from? When does the poop go? Has the area grown in population recently? Is it declining? Are there industries in the area? How many parks are there? Do any animals live there -  wild and domestic? What do you think the future of this area will be. You can use Google Maps and Wikipedia to get some idea...

The Honey Bee

Image
The Honey Bee. Perhaps the most important insect in the world....without the bees we would not have crops, fruit, vegetables. Things would be grim. Finally there is the waggle dance. Bees communicate by dancing and this was discovered and understood by Karl Ritter von Frisch, an Austrian ethologist who received the Nobel Prize in Physiology or Medicine in 1973. The "waggle dance" tells about more distant food sources. In order to do this, the dancing bee moves forward a certain distance on the vertically hanging honeycomb in the hive, then traces a half circle to return to her starting point, whereupon the dance begins again. On the straight stretch, the bee "waggles" with her posterior. The direction of the straight stretch contains the information about the direction of the food source, the angle between the straight stretch and the vertical being precisely the angle which the direction of flight has to the position of the sun. The distance to the food so...

Sustainability

Image
What is sustainability? Why is it important? What are people doing to achieve it? The Sustainable Development Goals are the blueprint to achieve a better and more sustainable future for all. They address the global challenges we face, including those related to poverty, inequality, climate, environmental degradation, prosperity, and peace and justice. The Goals interconnect and in order to leave no one behind, it ís important that we achieve each Goal and target by 2030. The Goals are explained in detail here . The Young People's Trust for the Environment is a charity set up to encourage young people's understanding of the environment. Founded back in 1982, it aims to give young people a real awareness of environmental issues such as climate change, pollution, deforestation and endangered flora and fauna.