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Earth had a climate long before we showed up and started noticing it and it's influenced by a whole series of cycles that have been churning along for hundreds of millions of years. In most cases those cycles will continue long after we're gone. A look at the history of climate change on Earth can give us some much needed perspective on our current climate dilemma because the surprising truth is, what we're experiencing now is different than anything this planet has encountered before. So, let's take a stroll down Climate History Lane and see if we can find some answers to a question that's been bugging Hank a lot lately - just how much hot water are we in?

Earth had a climate long before we showed up and started noticing it and it's influenced by a whole series of cycles that have been churning along for hundreds of millions of years. In most cases those cycles will continue long after we're gone. A look at the history of climate change on Earth can give us some much needed perspective on our current climate dilemma because the surprising truth is, what we're experiencing now is different than anything this planet has encountered before. So, let's take a stroll down Climate History Lane and see if we can find some answers to a question that's been bugging Hank a lot lately - just how much hot water are we in?

"One of the most common misunderstandings amongst climate change "skeptics" is the difference between short-term noise and long-term signal.  This animation shows how the same temperature data (green) that is used to determine the long-term global surface air warming trend of 0.16°C per decade (red) can be used inappropriately to "cherrypick" short time periods that show a cooling trend simply because the endpoints are carefully chosen and the trend is dominated by short-term noise in the data (blue steps).  Isn't it strange how five periods of cooling can add up to a clear warming trend over the last 4 decades?  Several factors can have a large impact on short-term temperatures, such as oceanic cycles like the El Niño Southern Oscillation (ENSO) or the 11-year solar cycle.  These short-term cycles don't have long-term effects on the Earth's temperature, unlike the continuing upward trend caused by global warming from human greenhouse gas emissions."

Eco-Cycle is one of the largest non-profit recyclers in the USA and has an international reputation as a pioneer and innovator in resource conservation. We were created 36 years ago by everyday residents who had a passionate belief in conserving our natural resources. These Eco-Cycle volunteers brought recycling to town in 1976, making Boulder one of the first 20 communities in the U.S. to offer curbside recycling. We continue to be driven by these same passions and innovative actions.

"In the 1960s, cars were threatening to displace bicycles in the main Danish cities. But the oil crisis, the environmental movement and a couple of controversial road projects reversed the trend. This is however just part of the story behind why Danes still cycle so much."

A clear change in salinity has been detected in the world's oceans, signalling shifts and an acceleration in the global rainfall and evaporation cycle. In a paper published today in the journal Science, Australian scientists from the CSIRO and the Lawrence Livermore National Laboratory, California, reported changing patterns of salinity in the global ocean during the past 50 years, marking a clear fingerprint of climate change.

"The timing was appropriately perverse. On the day that most listed Australian solar companies had finalised the release of a massive splash of red ink on their accounts, the result of a series of boom-bust cycles inspired by various state governments, Victoria decided to trigger another mini boom-bust cycle by becoming the latest, and presumably the last, to slash its solar feed in tariffs."

"Barclays Cycle Superhighway "

"The United States has seen quite the bike boom over the last decade or so, and it doesn't look to be slowing down anytime soon. According to the Christian Science Monitor, bike commuting grew by 47% nationwide between 2000 and 2011. Unsurprisingly, it was Portland, Oregon that took the lead with 250% growth, followed by Washington, D.C., San Francisco, Boston, Seattle, and New York City. Still, only 1% of Americans are biking on the regular, compared to 26% of people in the Netherlands, 10% of Germans, and 19% of the Danish population. The growth in the United States is of course still positive, and a great indication that there will be widespread public support as more cities begin to integrate cycling into the transportation grid."

"The federal government wants to increase the number of people who make short trips by foot or bicycle after a report card on the performance of Australia's cities found rapid changes in the labour market would pose big challenges to transport infrastructure. The economy benefits by more than $21 every time a person cycles 20 minutes to work and back and $8.50 each time a person walks 20 minutes to and from work, according to a policy statement released by Deputy Prime Minister Anthony Albanese on Tuesday."

Waterlife is an interactive story about the water cycle in the Great Lakes. Waterlife is a twenty part story through which students can learn about the role of water in our lives. Through the story students learn about things like fishing, pollution, invasive species, wetlands, and the politics of water conservation. When students select a part of the Waterlife story they will be able to hear narration, see visuals, and read the text of the story. Some parts of the story also contain links to external resources that student can explore.

"Eco-Cycle is proud to be the new home for the Be Straw Free campaign, started by Milo Cress at age 9. Please join us in enjoying drinks--strawless!"

"If you're worried about dressing ethically, chances are you think about sweatshop conditions in developing countries, unsustainable farming practices, convoluted global supply chains that ring up a huge carbon footprint, and mountains of fast-fashion festering in landfill. But the first thing you should think about is how often you wash your clothes. It turns out that when you look at the whole life cycle of a piece of clothing, everyday washing and drying damages our natural environment the most."

Also the chart below taken from a Climate Spectator article by Dr Jenny Riesz is one of the most illuminating. It shows the cross-over point between the cost of wind and a gas combined-cycle power plant depending on gas and carbon prices. While it is slightly out of date with the cross-over between wind and gas now about $1 per GJ lower than indicated, it still provides a good illustration of how gas and the carbon price influence the economics between wind versus gas.

"The Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era - and of human civilization. Most of these climate changes are attributed to very small variations in Earth's orbit that change the amount of solar energy our planet receives."

"The cooling of eastern Pacific Ocean waters has been counteracting the warming effect of greenhouse gases. Our research, released today in Nature, shows this natural variability in ocean cycles is responsible for the "hiatus" in global warming over the last ten years or so."

"The largest bike-sharing program in the United States is now active in New York City, providing thousands of carless and bikeless residents with a sustainable new form of transportation."

"Forest ecologists like a challenge however, and there have been several attempts at estimating the forest carbon "sink". According to this analysis, intact forests and those re-growing after disturbance (like harvesting or windthrow) sequestered around 4 billion tonnes of carbon per year over the measurement period - equivalent to almost 60% of emissions from fossil fuel burning and cement production combined."

"AMSTERDAM, The Netherlands - Bike sales dropped with double digit numbers in 2012, but e-bikes did OK as its share on the Dutch market continued to rise. Electric bikes are now the most important segment."

"While many American adults enjoy the perk of owning a car, as they pull out of their garage, they overlook one mode of transportation that may very well serve as not only an alternative mode of transportation, but also a key to a healthy life. http://www.quickenloans.com/ has created an infographic entitled "Footloose and Car Free! How Biking Can Improve Your Health and the Environment", illustrating how adding two-wheeled transport to your repertoire can benefit not only you, but the environment and your wallet! "

"The interactive maps allow you to zoom in or out, to select a specific mode of transit to examine, and provides a color-coded key as well as roll-over notes that will give you an idea of the percentages of people using that method of travel. Play with the maps of these cities to learn about the transit habits of people in your area. Or, if you're planning on relocating, see if one of these cities accommodates walking and biking to work or if cars rule the roads. There are many ways these interactive maps offer information: we hope they give you some interesting insights!"