• The Science Behind Climate Change (Documentary)
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    The Science Behind Climate Change (Documentary)

    What is global warming? How did it start? How will it continue? What will happen to humanity? Will one day we’ll be gone due to our own ignorance? Global Warming is the continuing rise in the average temperature of Earth’s climate system Through the sudden use of factories, gas consuming cars and and other ambitions from fossil fuels the Earth’s temperature has rapidly increased since the beginning of the industrial age Global warming is a natural event but is being majorly contributed to by humans today, the quality of the atmosphere has been irreversibly depleted over time and if nothing is done about it, the Earth will ultimately swelter Americans…

  • Studying Ice Cores to Understand the Earth’s Climate
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    Studying Ice Cores to Understand the Earth’s Climate

    One of the best ways to understand the Earth’s climate system as a whole is to look into the Earth’s past and to look at different time periods in the Earth’s climate history when greenhouse gases were at different levels. How much of the difference is really explained by the greenhouse gases themselves? How much is explained by other factors? Ice cores are among the best records for answering those questions. We collect ice cores both from Greenland and Antarctica. These are the two biggest ice sheets in the world, and the two ice sheets that contain really very, very old ice. If we drill down to the base of…

  • Greenhouse Effect – GCSE science, Physics (9-1)
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    Greenhouse Effect – GCSE science, Physics (9-1)

    – Hello, this video is about the greenhouse effect, the physical process that drives global warming and climate change. So, first of all, most of our energy comes from the sun, and the sun is a giant nuclear reactor in space. The reactions going on in the sun emit electromagnetic radiation. Now, we think of the sun as producing light and warmth perhaps, but actually it’s producing the entire range of electromagnetic spectrum all the way from radio waves at the low end to gamma rays and x-rays at the upper end of energy. Now, all that light and that radiation comes through space and by and large gets through…

  • Planting 20,000,000 Trees Will Actually Have This Impact
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    Planting 20,000,000 Trees Will Actually Have This Impact

    Trees. Growers of fruits, spices and nuts. Generators of shade. Home to birds, squirrels, koalas. Front line soldiers in the fight against climate change? You bet! Today we’re doing something a little different and talking about teamtrees.org’s mission of planting twenty million new trees by 2020, where every donation of one dollar equals one tree. You might be asking yourself “what would planting twenty million new trees do for the planet?” Let’s take a look at just how huge an impact each donation to teamtrees will make! A wide variety of organisms from lichen to bees to possums call trees home, and just one single mature oak tree can be…

  • Ecology and Environment: Intro
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    Ecology and Environment: Intro

    Homo sapiens rise. While homo habilis, homo neanderthalensis and homo erectus die out, leaving us the sole surviving human species. Our capacity for abstract thought, the ability to plan ahead and the ability to record information were necessary to our survival, but also allowed us to mould the world to our will and benefit. As homo sapiens spread many species such as the mammoths and giant ground sloths were hunted to extinction. Humans gradually abandoned the hunter-gatherer life, settling in agricultural communities. This change allowed much larger groups of humans to coexist, and so our settlements grew. Land was cleared for growing crops and animal husbandry and yet more species…

  • You Have More Bones Than You Think
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    You Have More Bones Than You Think

    Hi, this is David from MinuteEarth – and I’ve got a bone to pick with anatomy textbooks. Almost all of them say that you have exactly 206 bones in your body: 28 in your skull, 64 in your arms, 52 in your trunk, and 62 in your legs. But those textbooks are way too sure of themselves. That’s not just because there are plenty of people born without legs or with extra fingers or whatever; it’s also that these books fail to account for the “cartilage-to-bone spectrum”. Our entire skeletons start out as cartilage. As we grow, some of that cartilage gets surrounded by special cells that lay down a…

  • Meet Genia, she’s studying a Master of Environmental Management at UQ
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    Meet Genia, she’s studying a Master of Environmental Management at UQ

    Hi my name is Genia and I’m studying a Masters of Environmental Management here at the University of Queensland. Environmental Management at UQ is a really high caliber so you get to study at a world-class University in a program that’s often cited as a top ten program, which I was really excited about. There are elements of Agriculture that I was interested in, there are also elements of the science of problem-solving that I was really interested in, and one of the reasons I like this degree is because it is very interdisciplinary and you get to work in areas that you’re interested in but taking this whole approach…

  • How Close Are We to Mining in Space?
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    How Close Are We to Mining in Space?

    Some say humanity’s future as a space-faring species is just around the corner. But realistically, how are we going to get there? The answer is asteroids. These seemingly unimpressive lumps of rock could actually be the intergalactic pit stops for exploring the universe. They have the potential to become cosmic gas stations and the building blocks for habitats on Mars; to change how we navigate through space, and even to revolutionize Earthly engineering and economies. But their potential remains untapped. – We call the asteroids the stepping stones to the solar system. And we live in the age where humanity will make the leap into space. So how close are…

  • Articles

    Quiz Time | Hydrosphere | Environmental Science | EVS | Letstute

    we’ve completed an entire unit on hydrosphere so now do you think you can answer a short quiz on the same topic be prepared a mixed bag of questions for you in this quiz so we started from easy questions and the first question is . All the earth’s water is present in next one 2. Planet earth is also known as……yes you are right…..3. Water with high salt concentration is called as you have to change theArrange the following according to the various states of matter it belong to. can you do this that was really good so now this next question you have to name the different processes…

  • Coldest Inhabited Place On Earth – Could You Survive Here?
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    Coldest Inhabited Place On Earth – Could You Survive Here?

    People manage to live in some pretty remote places. Take the 258 folks that live on the island of Tristan da Cunha in the South Atlantic. If you want to visit them, you’ll have to take a ship from Cape Town for a journey of 1,732 miles [2,787 km]. For some peace and quiet you might also visit Barrow, Alaska, which is only reachable by plane. The 4,200 inhabitants of this town spend much of their extremely cold winters in total darkness. Even more remote is the town of Ittoqqortoormiit in Greenland, whose 452 population make their money fishing shrimp and hunting whales and polar bears. They are also happy…