Scientists have for the first time actually observed an increase in carbon dioxide's greenhouse effect at the Earth's surface. They attributed this upward trend to rising emissions from the burning of fossil fuels.

The US Environmental Protection Agency's (EPA's) proposed Clean Power Plan is achievable without jeopardizing the reliability of the country's power system, a study by the Analysis Group has concluded.

The European Commission has launched discussion on the creation of its proposed Energy Union. The initiative, it said, aims to "reform how Europe produces, transports and consumes energy."

Nuclear power is one of the most important technologies that can help the world to limit global warming to 2ºC, said OECD agencies in a Technology Roadmap for nuclear that spells out some steps to ensure this happens.

World leaders must commit to pricing carbon, cutting fossil fuel subsidies and tackling climate change this year, according to World Bank Group president Jim Yong Kim.

An agreement was reached at the recent United Nations climate change talks in Lima that all countries will submit details of their post-2020 plans to tackle climate change by the end of October 2015. The combined effect of these efforts will then be assessed.

Over 60 leading conservation and environmental scientists have signed an open letter calling for environmentalists to set aside their preconceptions to nuclear power to play a substantial role in replacing fossil fuels.

More than 60 leading scientists are urging environmentalists to set aside their preconceptions about nuclear power.

The European Union should complement its Emissions Trading Scheme with policies to attract "critical investment" in low-carbon technologies - including renewable energies, nuclear and carbon capture and storage – "through sector-specific measures to enhance technology innovation and address non-economic barriers," the International Energy Agency said in a report issued today.

Nuclear generation has played a pivotal role in helping the province of Ontario meet its aims to improve air quality and meet climate change targets, according to a report co-authored by Bruce Power and the Asthma Society of Canada.

China's nuclear generating capacity is set to triple over the next six years, according to an energy development plan published by the State Council.

UPDATED The World Nuclear Association "shares the concern" of the International Energy Agency that urgent action will be needed to steer the world's energy system onto a safer, low-carbon path.