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Why 4.5 billion years of fluctuating global temperatures can’t explain climate change today. One of the most commonly used arguments against human-caused climate change is that Earth has experienced severe fluctuations in temperature over its 4.5-billion-year lifespan, so it doesn’t make sense to start freaking out about it now.

Why 4.5 billion years of fluctuating global temperatures can’t explain climate change today

But while Boston was once covered in almost a mile (1.6 km) of ice, and the Arctic Circle was once so warm, palm trees and crocodiles populated it instead of ice and polar bears, what’s been going on over the past century is unprecedented. Climate-exodus expected in the Middle East and North Africa. The number of climate refugees could increase dramatically in future.

Climate-exodus expected in the Middle East and North Africa

Researchers of the Max Planck Institute for Chemistry and the Cyprus Institute in Nicosia have calculated that the Middle East and North Africa could become so hot that human habitability is compromised. The goal of limiting global warming to less than two degrees Celsius, agreed at the recent UN climate summit in Paris, will not be sufficient to prevent this scenario. A new politics of climate change could save the world. Fredrik Naumann/Panos Pictures By Fred Pearce EVER wondered how climate change might save the world?

A new politics of climate change could save the world

Probably not. But the renowned German sociologist Ulrich Beck, who died last year, did. Timely action needed to meet climate targets. The Paris Agreement of the UN climate change conference is deemed a historic step for climate protection, but its success depends on rapid implementations.

Timely action needed to meet climate targets

Increased CO2 in the atmosphere has altered photosynthesis of plants over the 20th century. Researchers at Umeå University and the Swedish University of Agricultural Sciences have discovered that increasing levels of CO2 in the atmosphere have shifted photosynthetic metabolism in plants over the 20th century.

Increased CO2 in the atmosphere has altered photosynthesis of plants over the 20th century

What's Really Warming the World? Climate deniers blame natural factors; NASA data proves otherwise. Climate scientists tend not to report climate results in whole temperatures.

What's Really Warming the World? Climate deniers blame natural factors; NASA data proves otherwise

Instead, they talk about how the annual temperature departs from an average, or baseline. Climate change for engineers. Last week, I was giving a seminar to a group of engineering students.

Climate change for engineers

Everything was fine, but when I started discussing climate change, a discussion ensued which I think is worth reporting here. The question. Professor, it is all right that you tell us these things about climate change, but I have to tell you that, a few weeks ago, we had here another professor who told us more or less the opposite; that is he told us that carbon dioxide is plant food, that models are uncertain, that there is much exaggeration and alarmism about climate change.

Now, he is a scientist, just like you. So, what should we think? My Answer. Let me try try a personal interpretation. So, when we deal with climate change, it is perfectly legitimate for scientists to have different opinions. Still, even engineers sometimes have to deal with uncertain situations and insufficient data.

Here's Everything You Need To Know About Why The Weather's Been So Bad. Arctic thaw significantly worsens global warming risk - environment - 18 February 2014. Melting ice is cooking the planet.

Arctic thaw significantly worsens global warming risk - environment - 18 February 2014

Shrinking Arctic sea ice means the ocean is absorbing more energy from the sun, and it's now clear the effect is twice as big as thought – adding significantly to heating from greenhouse gases. Arctic temperatures have risen 2 °C since the 1970s, leading to a 40 per cent dip in the minimum summer ice coverage in the Arctic Ocean. Open water soaks up more sunlight than ice, so as the ice retreats the ocean absorbs more energy, warming it and causing even more melting.

To measure the effect, Ian Eisenman of the Scripps Institute of Oceanography in La Jolla, California, and colleagues turned to data from NASA's CERES satellite. 'Enjoy life while you can' In 1965 executives at Shell wanted to know what the world would look like in the year 2000.

'Enjoy life while you can'

They consulted a range of experts, who speculated about fusion-powered hovercrafts and "all sorts of fanciful technological stuff". When the oil company asked the scientist James Lovelock, he predicted that the main problem in 2000 would be the environment. "It will be worsening then to such an extent that it will seriously affect their business," he said. "And of course," Lovelock says, with a smile 43 years later, "that's almost exactly what's happened. " Big Majority of Americans Support Action to Curb Global Warming, Even With Economic Costs: Study - weather.com 60 Years of Climate in 15 Sec.

A large majority of Americans – 83 percent – support taking steps to reduce global warming even if those steps involve economic costs, according to a new survey released today by Yale University's Project on Climate Change Communication.

Big Majority of Americans Support Action to Curb Global Warming, Even With Economic Costs: Study - weather.com 60 Years of Climate in 15 Sec

The survey, taken in the closing weeks of last year and titled "Public Support for Climate and Energy Policies in November 2013," polled 830 American adults across the country. It found majorities from both major political parties supported things like: Providing tax rebates for energy-efficient vehicles and solar panels (82% of Democrats, 62% of Republicans were in favor)Funding more research into renewable forms of energy (84% and 60%, respectively)Regulating carbon dioxide as a pollutant (85% and 55%)Ending all subsidies to the fossil fuel industry (67% and 52%) Human cause of global warming is near certainty, UN reports. Global warming is unequivocal, human influence has been the dominant cause since the mid-20th century, and atmospheric concentrations of greenhouse gases, already at levels not seen in at least 800,000 years, will persist for many centuries, the final version of the latest United Nations report on climate change warned today.

E ancora c'è chi fa finta di non credere al riscaldamento globale!? EU climate targets fail to convince scientists. Sean Gallup/Getty Images Meeting long-term climate goals will require substantial progress in technologies such as carbon capture and storage. The European Union’s member states are to reduce their collective greenhouse-gas emissions by 40% by 2030, relative to 1990 levels. This target, announced today by the European Commission, is an attempt to get Europe on track to meet its goal of cutting emissions by at least 80% by 2050, but falls short of the more aggressive plans many scientists had hoped for. Earth's Record 41 Billion-Dollar Weather Disasters of 2013.

Earth set a new record for billion-dollar weather disasters in 2013 with 41, said insurance broker Aon Benfield in their Annual Global Climate and Catastrophe Report issued this week. Despite the record number of billion-dollar disasters, weather-related natural disaster losses (excluding earthquakes) were only slightly above average in 2013, and well below what occurred in 2012. That's because 2013 lacked a U.S. mega-disaster like Hurricane Sandy ($65 billion in damage) or the 2012 drought ($30 billion in damage.) The most expensive global disaster of 2013 was the June flood in Central Europe, which cost $22 billion. The deadliest disaster was Super Typhoon Haiyan, which killed about 8,000 people in the Philippines.

Six countries set records for most expensive weather-related disaster in their history, as tabulated by EM-DAT, the International Disaster Database, and adjusted for inflation: Germany, June flooding, $16 billion. Photos du journal - I fucking love science. UN Report Says Small-Scale Organic Farming Only Way to Feed the World - TECHNOLOGYWATER. Nick Meyer | AltHealthWORKS Even as the United States government continues to push for the use of more chemically-intensive and corporate-dominated farming methods such as GMOs and monoculture-based crops, the United Nations is once against sounding the alarm about the urgent need to return to (and develop) a more sustainable, natural and organic system. That was the key point of a new publication from the UN Commission on Trade and Development (UNCTAD) titled“Trade and Environment Review 2013: Wake Up Before It’s Too Late,” which included contributions from more than 60 experts around the world.

The cover of the report looks like that of a blockbuster documentary or Hollywood movie, and the dramatic nature of the title cannot be understated: The time is now to switch back to our natural farming roots. The New UN Farming Report “Wake Up Before It’s Too Late.”The New UN Farming Report “Wake Up Before It’s Too Late.” Source: althealthworks.com. Global warming: New study shows pause doesn’t exist. Illustration by Kevin Cowtan, from the video below If you’ve been paying any attention at all to the ongoing noise about global warming, then you’ve heard of the so-called pause. This is the idea that the planet hasn’t actually been warming for the past 15 years or so.

Researchers find temperature feedback magnifying climate warming in Arctic. Conservative groups spend up to $1bn a year to fight action on climate change. Who Funds Climate Change Deniers?