British charity Christian Aid has blasted the European Union for being "dangerously two-faced" in their efforts to protect the world's climate.

"European Union leaders claim they still support the only existing climate deal that has legal teeth - the Kyoto Protocol - but their actions tell a different story,' said Dr. Alison Doig, Christian Aid's senior adviser on climate change."

"By not giving the Protocol their strongest possible support and by allowing other rich countries to abandon Kyoto and instead make weak, non-binding pledges through the Copenhagen Accord, they are condemning Kyoto to death," she added.

Doig's remarks come at the conclusion of a two week meeting on climate negotiations in Bonn, Germany where efforts to reach a compromise on emissions targets remained stagnant.

A new text published on the last day of the conference proposed that industrialized countries should cut their greenhouse gas emissions by 25 to 40 percent by 2020 but does not set a base year for that comparison.

Delegates from developing nations called the document "imbalanced."

"It's an unbalanced text, when I first saw it I was shocked," China's top negotiator Su Wei told Xinhua.

"Most of the text has deviated from the Bali Road map and it seriously endangers the future of Kyoto Protocol," he added. "China cannot accept that."

Meanwhile, the European Union attempted to show commitment towards emissions cuts by raising their 2020 reduction levels from 20 to 30 percent, although the gesture was deemed "inadequate" by Christian Aid, who said that 40 percent cuts from rich nations are a minimum for ensuring a halt to global warming.

The group added that "only enthusiastic backing from the European Union will save [the Kyoto Protocol] now," and urged European negotiators to show leadership.

Adopted in 1997, the Kyoto Protocol is seen as the last effective agreement on climate change produced in United Nations' negotiations.

The agreement sets binding emissions targets for 37 industrialized countries minus the United States.

Outgoing U.N. climate chief Yvo de Boer also agreed that the future of Kyoto is in danger, but said that the ball is in the United States' court on whether or not the framework will be saved.

"At the end of the day, the survival of the Kyoto Protocol depends on whether or not the U.S. is willing to take on targets of same legal nature as the rest of the industrialised countries," de Boer said, according to The Economic Times.

"There is a willingness to accept fact that not all industrialised countries will take on same numerical target," he added. "There is an acceptance that the US will have more modest targets that the EU, but there is no acceptance of the idea of differentiation in legal nature."

De Boer further noted that without increased commitments on emissions cuts, the chance of limiting global warming to 2 degrees Celsius could be lost.

"It's essential that current pledges grow over the next few years, otherwise the 2C world will be in danger, and the door to a 1.5C world will be slammed shut," he said, according to BBC.

Despite shortcomings, however, de Boer said that important technical details such as climate funding were hashed out during the Bonn talks that could open up possibilities during main climate negotiations in Cancún, Mexico in December.

"A big step forward is now possible at Cancún, in the form of a full package of operational measures that will allow countries to take faster, stronger action across all areas of climate change," said de Boer, who will be stepping down from his position on July 1.

The next round of climate talks will be hosted in Bonn in August.