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A Journey through Climate History

Related:  Earth Sciences

Garbage If your habits resemble those of average Americans, you generate about 4.6 pounds of solid trash per day. This adds up to big trouble for the environment. Americans are generating waste products faster than nature can break them down and using up resources faster than they can be replaced. How can we find ways to meet our current economic and social needs without compromising the ability of our children, and our children's children, to do the same? Sustainable practices: practices that provide ongoing economic and social benefits without degrading the environment. In this exhibit, you can find out how to improve next year's environmental record. Start by learning a few facts about solid waste.

Stellarium Five Science Videos That Make You Think About Ethics, Habitat and Climate Change There’s an abundance of science videos on the internet, but not all equally amazing. Offering an eclectic mix of cool science videos, Science Today producer Molly Michelson recommends five of her favorite clips. When wandering around a natural history museum, it may seem wrong or cruel to see animal specimens displayed. The ethics of continued collecting practices are a hot topic among biologists, but the debate has largely skipped the general population. This Brain Scoop video explains why it’s necessary for biologists to keep collecting species and the precautions they take to prevent long term negative effects on species populations. 2. In the old growth forests of Northern California and Southern Oregon, wildlife biologists have been selectively killing one species of owl to save another.

Four Corners - 04/08/2008: Tipping Point Reporter: Marian Wilkinson Broadcast: 04/08/2008 While Australians argue about when or whether to confront global warming, the top of the globe is melting away. The Arctic sea ice – sprawled across an area roughly the size of Australia - is in retreat. Scientists now fear that in less than 25 years from now, for the first time in human existence, there will be no sea ice in the North Pole in parts of the summer. These scientists are scrambling to model and measure the pace of the melt and to comprehend the enormity of the consequences – not just for the immediate ecosystem of polar bears and plankton, but for the world’s weather and its ability to feed itself. At the same time governments and corporations scramble to be first at the table for a new resources feast of oil, gas and minerals. Four Corners journeys to the Arctic Circle to explore how the melt is challenging human understanding of global warming. But vanishing sea ice is only part of what worries Macdonald’s colleagues.

Weather New Englanders have a saying: "If you don't like the weather, just wait a minute." Weather forecasts may be more stable in other parts of the world, but the basic idea stands. Weather is dynamic, the product of interacting forces we are only beginning to understand. Witness the weather extremes caused by El Niño in 1997 and 1998. El Niño raised water temperatures in the Pacific and the effects were felt worldwide: crop failures, disease outbreaks, excess snow, or too little rain. Weather may change on a daily basis, but climate changes over geologic time. Join us as we explore the forces behind the weather.

Paris 2015 – Views & Research – The Conversation What does the OECD's decision to limit finance for coal power stations mean for coal producers such as Australia? The Paris climate talks will now take place within a state of emergency that is threatening to limit public participation. Don't look to politicians and high finance, it's pressure from below that will be the driver of change. Australia's leadership on climate finance in developing nations could be an opportunity to improve climate diplomacy. The Paris attacks could inspire international leaders to come together in a global climate deal. The latest emissions auction closes the gap to Australia's climate target, but still leaves work to be done. Australia is reportedly blocking a deal to limit coal power finance in developing countries. What have businesses put on the table ahead of the Paris climate summit in December? It should not be assumed that policies intended to deal with the climate will simultaneously stop ocean acidification.

Simply Geology theconversation There are those who say the climate has always changed, and that carbon dioxide levels have always fluctuated. That’s true. But it’s also true that since the industrial revolution, CO₂ levels in the atmosphere have climbed to levels that are unprecedented over hundreds of millennia. So here’s a short video we made, to put recent climate change and carbon dioxide emissions into the context of the past 800,000 years. The temperature-CO₂ connection Earth has a natural greenhouse effect, and it is really important. We have known about the greenhouse effect for well over a century. Modern scientists and engineers have explored these links in intricate detail in recent decades, by drilling into the ice sheets that cover Antarctica and Greenland. Scientists use the chemistry of the water molecules in the ice layers to see how the temperature has varied through the millennia. Temperature and CO₂ But things are very different this time around. In mid-2017, atmospheric CO₂ now stands at 409 ppm.

Encyclopedia of Earth Global Warming and Climate Change skepticism examined One Ocean: The Nature of Things with David Suzuki: CBC-TV One Ocean Download Unity Web Player Get Unity 3D to Play The Unity Web Player enables you to view blazing 3D content created by the Unity gaming engine directly in your browser, and autoupdates as necessary. Download Unity Web Player: Install Now! Experience your 3D interactive online experience with the Unity Web Player It's safe , reliable , and FREE Learn More About Unity Requirements On Windows: 2000/XP/Vista/7 On Mac: OS X 10.3.9 or newer

State of the Climate - 2014 State of the Climate 2014. This State of the Climate is the third in a series of reports produced by CSIRO and the Australian Bureau of Meteorology. It provides a summary of observations of Australia’s climate and analysis of the factors that influence it. Introduction Weather and climate touch all aspects of Australian life. What we experience here at home is part of the global climate system. This is our third biennial State of the Climate report. The Bureau has been observing, reporting and researching Australia’s weather since 1908. If you are having difficulty accessing this information, please use either the contact information listed for this page or email CSIRO Enquiries within business hours.