1. Various of World Wildlife Fund (WWF) activists with slot-machine imitating gambling with fossil fuels
2. Close of placard reading (English) "Game over, fossil fuels"
3. SOUNDBITE (English) Stephen Singer, Director of Energy Policy, WWF:
"No one has talked about and thought about that renewable investments are failing. Of course, there are still some gaps in some efficiency of some technology renewables. Of course, in some cases renewables are not as cost effective as they could be, but don't let's forget fossil fuels have been ruining this planet for the last 150 years and still receive the bulk of investments and subsidies."
FILE: Beijing, China - 14 January 2013
4. Various of traffic in smog
5. Skyscraper in smog
6. Various of pedestrians and cyclists wearing masks
Berlin, Germany - 11 April 2014
7. Greenpeace campaigner Li Shuo at news conference
8. SOUNDBITE (English) Li Shuo, Greenpeace campaigner:
"A number of provinces (in China) already made actions to ramp down their coal consumption, but we think more provinces need to follow suit and the whole country needs to put a cap and reduction target for coal consumption in the next few years. We think that's very, very important from the climate-protection point of view."
Feldheim, Germany - 10 April 2014
9. Wide of entrance to village of Feldheim which is powered entirely by renewable energy
10. Various of wind turbines
11. Solar panels
12. Biogas plant
13. SOUNDBITE (German) Doreen Raschemann, New Energy Forum Feldheim:
"We here in Feldheim show that it is possible, and we want our project to be seen as an example for other regions. We even think of including Treuenbritzen (the city closest to Feldheim) or the entire area of Flaeming into our energy autarchic (i.e. total control) system. What we've done here is just a first step, a project that shows how it could work. Now we want to move on."
Scientists and diplomats have been holding talks in Berlin to spell out in plain terms what options the world has if it wants to prevent catastrophic global warming.
Delegates at the week-long closed-door meeting need to tackle a number of sensitive issues, including how best to cut carbon emissions and how to share the cost of shifting away from the fossil fuels that are largely blamed for producing the gases that are heating the planet.
The conclusions of the Intergovernmental Panel on Climate Change (IPCC) will feed into a landmark assessment report that will form the basis of negotiations for future climate treaties.
Experts say that in order to keep global temperature increases below 2 degrees Celsius (3.6 F) by the end of the century, greenhouse gas emissions will have to be cut by 40 percent to 70 percent by 2050.
But there are sharp differences between nations over how to achieve this and who will pay for it.
One plan involves cooling the planet by sucking heat-trapping carbon dioxide from the air or reflecting sunlight back into space.
Called geoengineering, it's considered mad science by opponents.
Supporters say it would be foolish to ignore it, since plan A - slashing carbon emissions from fossil fuels - is moving so slowly.
But other environmental activists want the Intergovernmental Panel on Climate Change to scratch references to geoengineering altogether.
They worry that such technologies would be ineffective, possibly harmful and delay efforts to shift the world's energy system from oil and coal to low-carbon energy sources like wind and solar power.
WWF director of energy policy Stephen Singer doesn't think that geoengineering is an alternative to renewable energies.
"Of course, there are still some gaps in some efficiency of some technology renewables. Of course, in some cases renewables are not as cost effective as they could be," he told the AP on Friday. "But fossil fuels have been ruining this planet for the last 150 years and still receive the bulk of investments and subsidies."
Elsewhere, environmental activists argue that China needs to slash its consumption of fossil fuels - and coal in particular.
Last year alone, China consumed half of the world's coal consumption
Greenpeace expert Li Shuo told the Associated Press in Berlin that some provinces have started taking action to ramp down their reliance on coal.
But, he added, "we think more provinces need to follow suit and the whole country need to put a cap an reduction target for coal consumption in the next few years."
Meanwhile, a village in eastern Germany may be a potential model for life beyond fossil fuels.
Feldheim's 145 residents are supplied with energy generated by renewable sources at their doorstep - from wind turbines to solar panels to biogas.
Wind turbines and solar panels provide the village's electricity.
Heat comes from a biogas plant that produces fuel from the by-products of organic material such as plants or food waste.
Both heat and power are fed straight to consumers, reducing costs and ensuring independence from the grids of conventional power companies.
Moreover, with most residents working at the biogas plant or maintaining the wind turbines and solar panels, Feldheim has zero unemployment compared with roughly 30 percent in nearby villages in the economically depressed state of Brandenburg.
"We here in Feldheim show that it is possible and we want our project to be taken as an example for other regions," said local resident Doreen Raschemann.
She says visitors come from across the globe to take home ideas about alternative energy production.
Indeed, the rise of renewables isn't restricted to Feldheim.
A report released last Monday showed that renewable energy, excluding large hydropower plants, increased its share of overall power generation worldwide from 7.8 percent in 2012 to 8.5 percent last year.
And, since 2006, some 1.5 (t) trillion US dollars has been invested in renewable energy.