On Monday, countries met in Bonn, Germany, to begin discussions on the details of the UN climate deal adopted in Paris in December 2015. The meeting took place in the shadow of NASA’s announcement that it had just registered the warmest April on record. Delegates need to fill in the gaps left by the Paris agreement, which was vague on some issues such as how to report progress on targets. Climate Home reports comments from the UN’s outgoing climate chief, Christiana Figueres, who urged action in light of the new temperature record. Carbon Pulse reports that she reinforced that countries should improve their ambition during a review of pledges scheduled to take place in 2018.

Energy company Statoil has been granted a seabed lease to develop what will be the world’s largest floating wind farm. By the end of 2017, the company expects to be generating electricity from five 6MW turbines floating in the North Sea, around 15 miles off Peterhead. Floating wind turbines are being developed to avoid the heavy costs associated with building an ordinary turbine into the seabed, while allowing access to stronger winds and reducing the visual impact. The Mail Online also covers the story.

The date when the proposed NuGen power plant will first generate electricity has slipped backwards for a second time. Initially slated to be running by 2023, new consultation documents reveal that it will now only be generating by 2025. A spokesperson told the Telegraph they had been “reassessing” the schedule for construction. NuGen hopes to build three reactors with a combined capacity of up to 3.8 gigawatts, subject to a final investment decision in 2018.

The price of oil has hit a six month high, as outages in Nigeria and Venezuela helped to alleviate the long-standing supply glut. The price of Brent crude rose by $1.23 to $49.06. Overall, the price has rallied by 75% since January. Goldman Sachs has said it expects oil prices to rise to $50 a barrel in the second half of the year. The Financial Times and the Telegraph also cover the news.Reuters suggests that this means the worst of the supply glut may be over.

Hundreds of Canadian oil workers near the wildfire-hit town of Fort McMurray have been ordered to evacuate, as the resurgent fire heads towards them. Up to 600 workers have been sent to oil sands installations further north, according to Alberta State premier Rachel Notley, with 4,000 more workers on standby to evacuate if necessary. More than 80,000 people fled the town two weeks ago when it hit the area. According to Reuters, the fire is still 10-12 miles away from the oil facilities.

Ontario in Canada is planning to spend CA$7bn to reduce its emissions, according to a new Climate Change Action Plan seen by the Globe and Mail. It lays out a strategy from 2017 to 2021, including actions such as phasing out natural gas for heating, providing incentives to retrofit buildings and giving rebates to drivers who buy electric vehicles. The policies are “certain to cause mass disruption for the province’s automotive and energy sectors, says the newspaper.

Atmospheric CO2 levels measured on Tasmania’s northwest coast officially passed the 400 parts per million mark on 10 May, and on 14 May the 400ppm mark was also breached at a station in Antarctica. These measurements suggest that atmospheric concentrations of CO2 is now at or above 400ppm for the entire southern hemisphere, explain two scientists from CSIRO, who were involved with the measurements. CO2 levels in the northern hemisphere are higher because that is where most CO2 sources, such as vegetation and fossil-fuel burning installations, are located, while sinks such as the ocean are predominantly in the south.

A Brooklyn-based writer Kate Aronoff looks at what we know of what Donald Trump’s climate policies might entail, on the back of an interview with his energy advisor in ClimateWire last week. This consists of repealing the Clean Power Plan, scaling back the Environmental Protection Agency and some kind of carbon tax. Despite his own views on climate change, such policies could be driven by the desire for votes, she says — but the upshot is that they won’t work.

Poor countries in the tropics are likely to experience daily extreme temperatures caused by climate change sooner than wealthier nations in the mid-latitudes, a new study suggests. The climate of the tropics is much less variable than the mid-latitudes, the researchers say, so the climate change trend emerges more quickly, meaning the frequency of extreme hot days increases rapidly. Countries in the Horn of Africa and West Africa are likely to be among those worst affected, the study finds.

Emissions of methane and nitrous oxide from farming need to be cut by 1bn tonnes a year (in CO2 equivalent) by 2030 in order to limit global temperature rise in 2100 to 2C above pre-industrial levels, a new study says. However, existing mitigation options for farming are only able to deliver 21 to 40% of these emissions reductions, the researchers say. This means “more transformative technical and policy options will be needed”, such as developing methane inhibitors that reduce dairy cow emissions by 30% without affecting milk yield, and using varieties of cereal crops that release less nitrous oxide.

Higher CO2 levels may help offset the losses of carbon from grassland exposed to drought and extreme heat under climate change, a new study suggests. In an open-air experiment, researchers simulated the projected climate and atmospheric CO2 of the 2050s on grasslands. Their results suggest that more root growth and nitrogen uptake by grasses under elevated CO2 slows down the decline in carbon uptake during drought and high heat conditions, and also speeds up recovery afterwards.