Multiple political developments emerged this week involving key figures in UK politics, though they appear to be separate stories rather than connected events.

Downing Street confirmed that Prime Minister Keir Starmer uses disappearing messages on his phone. This disclosure came after a batch of messages between ministers and Lord Mandelson were published Monday, which contained only a few communications from the prime minister himself.

Separately, Andy Burnham, the Mayor of Greater Manchester, stated he would not call an early general election if he were to replace Starmer as party leader. Burnham's comments come amid ongoing speculation about Labour leadership, though he has not officially declared any intention to challenge Starmer.

In environmental policy news, Energy Secretary Ed Miliband called for the UK to reduce greenhouse gas emissions by 87% by 2040. This target represents a significant acceleration from current climate commitments and would require substantial policy changes across multiple sectors.

Additionally, former Prime Minister Tony Blair has reportedly criticized what he characterizes as issues with Starmer's economic growth strategy, though the specific details of Blair's critique were not fully detailed in available reports.

These developments come as the Labour government continues to navigate various policy challenges and internal party dynamics several months after taking office.