We've made changes, arguable whether they're big enough. From that article:
"Overall, the UK has a target of cutting CO2 emissions 80% by 2050. Ministers are on track to meet their short-term goals, but the advisory Committee on Climate Change (CCC) says they are still short of policies to achieve long-term targets.
The CCC warns there’s also a big difference between the current UK target of 80% cuts and the increased ambition of virtually 100% cuts that ministers are likely to embrace."
Demands 1 and 2 seem fair. Not sure what 3 involves.