2C
Rhetoric or reality? Climate scientists divided on 1.5C warming goal
NEWS: Tighter warming limit is meaningless without decarbonisation pathway, say experts as countries close in on Paris climate deal
A brief history of the 1.5C target
ANALYSIS: Like most overnight successes, a campaign by vulnerable countries for a stricter warming limit is based on years of groundwork
Podcast: How climate vulnerable countries are setting the agenda in Paris
Megan Darby talks to Monica Araya, former Costa Rica negotiator and founder of think tank Nivela, about an extraordinary push for a 1.5C global warming limit at COP21
Coke, Sony among 114 firms to cut carbon in line with 2C
NEWS: Businesses with emissions equal to South Africa and nearly $1trn in profits pledge to help cap global warming below agreed danger threshold
Scientists: 1.5C warming limit means fossil fuel phase-out by 2030
NEWS: Global greenhouse gas emissions stalled in 2015, but tough target demanded by climate vulnerable countries looks unattainable
Saudi Arabia, India quash UN study warning of 2C dangers
NEWS: Island nations left distraught as major carbon polluters block report that suggested limiting temperature rises to well below 2C would be safer for millions
Podcast: A climate scientist’s first UN summit
Katharine Hayhoe, atmospheric scientist at Texas Tech University, evangelical Christian and communicator, reflects on 2C, US Republicans and the “Pope effect”
Germany and France back 1.5C global warming limit
NEWS: Countries vulnerable to climate change impact welcomed show of support for tighter temperature goal at COP21 in Paris
Bill McKibben: Exxon’s power is ‘weakening daily’
INTERVIEW: Probe of oil major’s alleged climate denial shows fossil fuel industry has ‘done nothing but deny and deceive for a generation’, says 350 founder
Is it immoral to invest in coal?
ANALYSIS: Cheap fuel for developing nations; disastrous for the climate. We asked three experts if it is morally defensible to bankroll new mines and power plants
Weekly wrap: Paris preview, blocking coal and 2C controversy
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UN moves goalposts to keep 2C hope alive
NEWS: Positive message of ’emissions gap’ report ahead of COP21 is based on implausible assumptions, warns scientist Oliver Geden
World headed for hottest year on record – WMO
NEWS: 2011-2015 was the warmest five-year period since measurements began, UN weather agency declares before Paris summit
WMO urges emissions cuts as atmospheric CO2 levels break records
NEWS: Carbon dioxide levels in the air passed 400ppm globally in April. That will soon be a “permanent reality”, says UN agency
UNEP: National climate plans deliver half carbon cuts needed for 2C
NEWS: Government pledges will cut 11 gigatonnes of greenhouse gases by 2030, report finds, leaving an emissions gap of 12Gt
Saudi forum seeks to scale up carbon capture and storage
NEWS: Delegates from 23 countries agree to cooperate on bringing down the towering costs of CCS at summit in Riyadh
Decarbonisation risks sidetracking Paris pact, says ex-UN climate chief
NEWS: Fossil fuel phase-out this century is an ‘impressive sound bite’ but could harm chances of an agreement at COP21, says Yvo de Boer
Countries near deal to phase out super warming HFCs
NEWS: Formal negotiations on the Montreal Protocol in Dubai this week get world closer to tackling pollutants used in air conditioners
Vulnerable countries warned: Protect your legal rights in a Paris accord
COMMENT: Countries may be waiving claims to future climate compensation in a new deal. Know what you’re signing away, writes barrister Tim Crosland
Scientists accused of downplaying ‘revolution’ needed for 2C warming goal
NEWS: Rich countries must make a radical shift in consumption patterns to stay within agreed climate change limits, argues UK academic Kevin Anderson