Presidential hopeful joins rivals Rick Perry and Michelle Bachmann in voicing doubts over climate science
The future of US efforts to curb greenhouse gas emissions depends upon the result of next year's presidential election, after Republican presidential candidate Mitt Romney became the latest primary frontrunner...
Respected environmental campaigner becomes latest shadow minister to quit in protest at Jeremy Corbyn's leadership
Former Climate Change Minister says government should rethink privatisation of Green Investment Bank in the wake of Brexit vote
Respected environmental campaigner joins shadow cabinet as vote of no confidence in Jeremy Corbyn begins
Analysts say Brexit will create uncertainty for energy sector, which could hit £20bn investment a year needed to replace ageing, dirty power plants