The answer, sadly, seems to be 'very little'
As Chancellor Philip Hammond readies Budget, Aurora Energy Research analysis reveals potential for adding 10GW of renewables by 2040 if carbon price increases
Any watering down of the Carbon Price Support mechanism would deal a grave blow to UK decarbonisation efforts, warns Sandbag's Phil McDonald
'If the government is serious about its commitment to the Paris Agreement, now is not the time to consider lowering carbon prices, indeed it suggests they should be increased'
Mo Saqib of Dearman Engine Company argues a simple move to end tax breaks for red diesel used in trucks could have an outsize impact on air pollution
With fuel duty increase ruled out, the Treasury is considering increasing Climate Change Levy on gas use in bid to raise revenue and curb emissions
Antonio Guterres appointed the billionaire businessman to spur private sector investment into clean energy and resilience to climate change
Rich countries must scale up efforts to cut carbon emissions, Organisation for Economic Co-operation and Development tells world leaders in New York
Bunzl's Joanna Gilroy asks whether Treasury taxes on single use packaging products can really fix the problem and help to resolve the ocean plastic crisis
Robertsbridge's Charles Secrett argues it is time government rethought its approach to environmental fines or risk undermining public support for green measures
EU ETS price on course to hit €40 per tonne by 2023 says Carbon Tracker, but how high is too high?
HM Treasury says consultation on taxing plastic waste received highest ever response rate from businesses and the public, with strong support for measures to cut demand for takeaway containers
Residential Landlords Association calls on Treasury to incentivise upgrades needed to deliver on new energy efficiency standards
Study co-authored by Lord Stern argues governments should focus on building public support for strong carbon pricing, rather than limiting themselves to economic arguments
Michael Gove: 'It is only by working together we will reverse the rising tide of plastic waste finding its way into our rivers, seas and oceans'
Scientists find an estimated 30 per cent drop in plastic bags on the seabed in the same timeframe as charges were introduced in European countries
Uptick in industrial activity drives emissions growth across the trading bloc
All the reaction to the Chancellor's unveiling of a wide-ranging new call for evidence on how to tackle plastic waste
Spring Statement: Greener vans and plastic taxes, Chancellor promises action to tackle 'environmental challenges that threaten our future'
Wide-ranging call for evidence on how to crack down on plastic waste accompanied by new plans to incentivise white van drivers to switch to cleaner models
Chancellor promises to launch wide-ranging call for evidence on how to tackle scourge of plastic waste
EXCLUSIVE: New report from Greens in Europe to reveal major loss in tax revenue due to gap in real world vehicle CO2 emissions and results from lab tests
Chancellor announces new tax exemption will come into effect next month, saving cabbies £1,550 if they ditch diesel models in favour of electric alternatives
Chair of Environmental Audit Committee Mary Creagh writes to Chancellor Philip Hammond to ask where is the government's promised call for evidence on proposed plastic tax?
Major new analysis from OECD finds energy taxes around the world are far too low to deliver environmental benefits or deep emissions cuts