Global Warming

Temperatures in the Contiguous 48 United States, 1901-2013

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http://www.epa.gov/climatechange/science/indicators/weather-climate/temperature.html

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“This figure shows how annual average temperatures in the contiguous 48 states have changed since 1901. Surface data come from land-based weather stations. Satellite measurements cover the lower troposphere, which is the lowest level of the Earth’s atmosphere. “UAH” and “RSS” represent two different methods of analyzing the original satellite measurements. This graph uses the 1901–2000 average as a baseline for depicting change. Choosing a different baseline period would not change the shape of the data over time.” – United States Environmental Protection Agency ... Read more about Temperatures in the Contiguous 48 United States, 1901-2013

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Food system that fails poor countries needs urgent reform, says UN expert

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Mark Tran, The Guardian
A soybean farmer in Mato Grosso, Brazil. The country's 'family farmers' are encouraged to feed urban populations. Photograph: Paulo Whitaker/Reuters
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UN special rapporteur on the right to food champions agroecology as sustainable alternative to existing framework

The existing food system has failed and needs urgent reform, according to a UN expert who argues there should be a greater emphasis on local food production and an overhaul of trade policies that have led to overproduction in rich countries while obliging poor countries – which are often dependent on agriculture – to import food. ... Read more about Food system that fails poor countries needs urgent reform, says UN expert

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Nowhere To Hide From Global Forest Watch

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SustainableBusiness.com News
Indonesia
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There's nowhere to hide now that Global Forest Watch has launched - citizens around the world now have all the information they need to monitor the state of the world's forests. 

Global Forest Watch combines the latest satellite technology, open data and social media crowdsourcing to produce "near-real time, reliable, and actionable data" about what's happening to forests worldwide. ... Read more about Nowhere To Hide From Global Forest Watch

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Africa faces sharp rise in climate adaption costs - UNEP

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Megan Rowling, Nov 19, 2013
An abandoned canoe is seen on a water hyacinth covered lagoon near the Makoko slum in Nigeria's commercial capital Lagos
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Africa faces climate adaptation costs in the range of $7 billion to $15 billion per year by 2020, and that figure could rise to around $350 billion annually by 2070 if global warming exceeds 2 degrees Celsius, a U.N. report said on Tuesday.

Even if the 2 degrees goal - agreed by nearly 200 governments in 2010 - were to be met, the cost of adapting to more extreme weather and longer-term climate shifts would still be around $35 billion per year by the 2040s and $200 billion per year by the 2070s, according to the U.N. Environment Programme (UNEP). ... Read more about Africa faces sharp rise in climate adaption costs - UNEP

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Algae biofuel could cut CO2 emissions by 68% compared to petroleum

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BIOENERGY NEWS SEP 23 2013
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Algae-derived biofuel can reduce life cycle CO2 emissions by 50 to 70 per cent compared to petroleum fuels, according to a new peer-reviewed paper published in Bioresource Technology journal.

As reported in Scienceblog, the study, which is the first to analyse real-world data from an existing algae-to-energy demonstration scale farm, shows that the environmental and energy benefits of algae biofuel are at least on par, and likely bett ... Read more about Algae biofuel could cut CO2 emissions by 68% compared to petroleum

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What Leading Scientists Want You to Know About Today's Frightening Climate Report

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RICHARD SCHIFFMAN SEP 27 2013
Arctic sea ice on September 13, 2013, as measured by satellite microwave sensors and arrayed on NASA’s cloudless Blue Marble satellite imagery. How many years does it have left? (NASA)
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The polar icecaps are melting faster than we thought they would; seas are rising faster than we thought they would; extreme weather events are increasing. Have a nice day! That’s a less than scientifically rigorous summary of the findings of the Fifth Intergovernmental Panel on Climate Change (IPCC) report released this morning in Stockholm. ... Read more about What Leading Scientists Want You to Know About Today's Frightening Climate Report

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IPCC "conservative" on sea level rise

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IRIN NEWS
One of Palau's more than 200 islands threatened by sea level rise. Many low lying countries and small island states could disappear
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JOHANNESBURG, 8 October 2013 (IRIN) - The international scientific community’s new assessment of the estimated sea level rise caused by global warming is a significant development, but experts say the projections for higher sea levels in the Intergovernmental Panel on Climate (IPCC) assessment report (AR5) are still on the low side. The projections are of immediate concern to low-lying countries and small island states. 
... Read more about IPCC "conservative" on sea level rise

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Shift to a new climate likely by mid-century - study

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Reuters
A Roma man cools himself in the impoverished outskirts of Ozd, northeastern Hungary, in the grip of a heat wave,
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OSLO, Oct 9 (Reuters) - Billions of people could be living in regions where temperatures are hotter than their historical ranges by mid-century, creating a "new normal" that could force profound changes on nature and society, scientists said on Wednesday.

Temperatures in an average year would be hotter by 2047, give or take 14 years, than those in the warmest year from 1860-2005 if the greenhouse gas emissions continue to rise, with the tropics the first affected area, a new index indicated. ... Read more about Shift to a new climate likely by mid-century - study

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Chance of saving most coral reefs is dwindling -study

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Reuters
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*70 pct of corals will suffer degradation by 2030

*To protect half of reefs, temperature rise must be under 1.5C

The chance to save the world's coral reefs from damage caused by climate change is dwindling as man-made greenhouse gas emissions continue to rise, scientists said in a study released on Sunday.

Around 70 percent of corals are expected to suffer from long-term degradation by 2030, even if strict emission cuts are enforced, according to the study. ... Read more about Chance of saving most coral reefs is dwindling -study

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