In Washington, U.S. Secretary of Agriculture Tom Vilsack and Navy Secretary Ray Mabus unveiled the “Farm to Fleet” program, through which the Navy will begin to add biofuels into its regular domestic purchases of approximately 77 million gallons of jet fuel (JP-5) and marine diesel (F-76) each year.

A new report from the Australian Energy Market Operator (AEMO) forecasts 100 percent of new power in Australia will be generated from renewable energy sources through 2020.

India's solar energy installed capacity has swelled from practically nothing to more than 2 GW in the three years since the creation of the Jawaharlal Nehru National Solar Mission Phase 1 (JNNSM). Impressively, costs have come down rapidly (to roughly $0.12/kWh for solar PV, and $0.21/kWh for CSP) to be competitive with grid-connected solar PV in many other regions.

Global private capital renewable energy investments are still above $250 billion for 2013. While the final numbers are not in yet, 3rd quarter global renewable energy investments, according to Bloomberg New Energy Finance’s latest data on deals and projects, notes slightly lower global investment than in 2012 due faltering “political will to decarbonise energy mix.” They further note that the third quarter’s decline in investment will push the year’s overall investment in renewable energy and energy-smart technologies down below 2012's $281 billion. But $250+ billion ain’t shabby.

Alaska’s 720,000 people live in over 200 “energy islands” with no electricity grid connection to each other nor to North America. Smaller communities have no road connection to each other, the rest of Alaska, or the continent. Most energy is imported: diesel for electricity generation and heat; gasoline for transportation. All Alaskans might obtain an annually-firm supply of most of their energy, for all purposes, by converting Alaska’s diverse, stranded, renewable energy (RE) resources to liquid anhydrous ammonia (NH3) fuel, transporting and storing it at low cost in common steel propane tanks, recovering the RE via stationary combined-heat-and-power (CHP) plants, in internal combustion engine (ICE) and combustion turbine (CT) gensets, and via fuel cells, and as transportation fuel. Alaskans could achieve a significant degree of community energy independence, and perhaps export their abundant, stranded renewables as “green” liquid NH3 fuel. Solid state ammonia synthesis (SSAS) appears promising.

University of Georgia researchers are working to produce faster-growing sweetgum trees by growing embryogenic sweetgum cultures in bioreactors, computer-operated systems used for growing cells under controlled conditions.

As editors we delight in learning which of the stories that we wrote or commissioned were most popular with our readers. That’s why at the end of each calendar year, we pull reports that tell us which stories we posted got the most shares, the most views, the most comments, etc. We also look at which videos were watched the most. Often, we post articles that we know will be a big hit: like explanations of controversial solar legislation. But other times you surprise us, readers, by taking great interest in articles that we felt were solid but not necessarily ground-breaking.

The United States broke one record after another for extreme weather in 2013. From deadly floods in Colorado to prolonged drought across the Southwest, Americans saw what unchecked climate change can do to our communities. But we also witnessed another kind of powerful force: real and positive climate action.

We here at RenewableEnergyWorld.com value each and every one of our excellent contributors that share their important and thought-provoking insights with our readers. But we have a special affinity for our outstanding blogging community.

PensionDanmark A/S and other Danish pension investors backed a state fund to finance emission-reduction projects in developing countries as the Scandinavian nation seeks to export its climate know-how abroad.

Renewable Energy Generation Ltd., a British low-carbon asset developer backed by BlackRock Inc., will build six waste-to-power plants with Caterpillar Inc. and Finning U.K. Ltd. in an expansion of plans published last month.

European Union leaders intend next month to agree on a timeline for developing energy and climate targets for 2030, delaying a final decision on the polices, according to two people with knowledge of the matter.

Tesla Motors Inc. Chief Executive Officer Elon Musk said shifting to greater use of solar and wind power will challenge utility companies.

Clean energy assets in the Middle East and North Africa will more than double in capacity by the end of next year, the Dii GmbH industry association said.

The U.K. risks power shortages because utilities may react to Europe’s toughest carbon emissions rules by closing plants without replacing them.

Suez Environnement, Europe’s second-biggest water company, and Chinese partners agreed to build an incinerator near Shanghai to treat hazardous and medical waste that will generate steam and supply energy.

Greenpeace issued its annual report on the energy efficiency of Internet companies, praising Apple Inc., Facebook Inc. and other major providers of online services for improved use of energy resources.

Royal DSM NV, the world’s largest vitamin manufacturer, expects to begin producing cellulosic ethanol in the U.S. by July as the government considers reducing the amount of renewable fuel that oil companies will be required to buy.

Prime Minister Shinzo Abe’s government stopped short of setting goals for renewable energy in the final version of a draft plan that reinforces atomic power’s role in Japan’s energy future, calling it a vital source of generation.

Simplifying finance vehicles for renewable energy will lure more investors and lower the costs of capital.

The world needs to triple the energy it gets from renewables, nuclear reactors and power plants that use emissions-capture technology to avoid dangerous levels of global warming, United Nations scientists said.

Ukrainian officials say they’ve found a way to protect the nation from Russia: Go green.

China, the world’s biggest investor in renewable energy, reiterated plans to boost construction of solar and wind power plants along with projects to transmit electricity from the clean sources.

Drax Group Plc, Dong Energy A/S and SSE Plc will get guaranteed power prices for U.K. biomass and offshore wind plants, the first renewable energy projects to benefit from a new aid program.

Africa’s renewable energy capacity is expected to quadruple to about 120 gigawatts by 2030 if investors dedicate “substantial flows” of funds to the region, the InternationalRenewable Energy Agency said.

Bracing for greenhouse-gas rules from the Obama administration, two industries are staking out different positions. Coal companies are pledging to sue. Electric utilities are ready to talk.

Ohio is debating the sharpest break from a three-decade campaign by 29 U.S. states to reduce reliance on fossil fuels by promoting power from renewable sources.

The U.K. Green Investment Bank aims to boost the capital it commits to carbon-cutting projects to 700 million pounds ($1.2 billion) this year as it chases deals in offshore wind, waste and energy efficiency.

Billionaire Rubens Ometto’s Cosan SA has the potential to triple its power generation by burning sugar-cane leftovers if the government offers power-purchase contracts for biomass producers.

Renewable energy may reap as much as two-thirds of the $7.7 trillion in investment forecast for building new power plants by 2030 as declining costs make it more competitive with fossil fuels.

The European Union threatened to renew tariffs on biodiesel from the U.S. for another five years in a sign of persistent trade tensions over renewable energy.

With its revival for fiscal year 2014, the Hydroelectric Production Incentives Program shows promise as a new federal revenue stream for hydro facilities.

India will begin construction this year on an $8 billion project backed by Germany’s development bank to upgrade its grid to handle a more than doubling of renewable power capacity by 2022.

Scotland’s Macallan whisky distillery is set to get most of its heat requirement from a combined heat and power plant part-funded by the government.

South African Energy Minister Tina Joemat-Pettersson said her department wants to address weaknesses in the process of commissioning renewable-power projects.

When the world’s largest working advanced digestion plant opened last month, it showed the power- hungry process of treating waste in the $360 billion water industry can be self-sufficient in terms of energy use.

Abengoa SA, a Spanish energy and environment company, plans to issue its first green bond to raise 500 million euros ($642 million) to finance projects.

Kyushu Electric Power Co. will suspend responding to applications from renewable-energy producers applying to access its grid while it reviews how much more clean energy it’s capable of handling.

European Union governments are considering the use of carbon-permit funds to help finance clean technologies and spur poorer nations toward a low-carbon economy under a planned deal on 2030 climate and energy policies.

Brazil, known as a leader in the bioenergy scene, continues to show its dominance in the industry with plans for a new cellulosic ethanol plant and a 150-MW woody biomass plant, the nation's largest.

The U.K. Green Investment Bank is set to tie up the first investments in a $1.6 billion fund by the end of March, part of Britain’s push to cement its dominance in offshore wind power.

Prime Minister Tony Abbott’s government will negotiate with the opposition to cut Australia’s renewable energy target and exempt industries such as aluminum and copper smelting.

U.S. electricity markets face years of higher prices as clean-air regulations shut more coal-fired power plants than earlier forecast, cutting supply and forcing producers to rely more on natural gas.

Humans are causing irreversible damage to the planet from burning fossil fuels, the biggest ever study of the available science concluded in a report designed to spur the fight against climate change.

President Barack Obama pledged deeper U.S. cuts in greenhouse-gas emissions and China will for the first time set a target for capping carbon emissions under an agreement between the world’s two biggest economies.

Peru’s government is set to announce plans for a renewable-energy auction during a global climate conference to be held next month in Lima.

President Barack Obama will pledge $3 billion to a United Nations climate-change fund that’s intended to help poor nations boost renewable energy and counter the ill effects of global warming.

The Brazilian government is seeking to award contracts in an auction tomorrow for natural gas- and coal-fueled power plants, reversing a drive that previously favored renewable-energy projects. It would lead to the first new thermal plants in three years, after the government scaled back such projects and awarded wind contracts starting in 2009 and solar energy earlier this year.

EON SE’s plan to spin off its fossil fuel plants marks a watershed moment in Germany’s renewables effort that will likely bolster the country’s already leading position in clean energy.

India, the world’s third-largest polluter, will spend at least $100 billion on climate-related projects but isn’t ready to follow China and the U.S., the top two emitters, in promising to limit its fossil-fuel emissions.