The Guardian reveals today how a climate scientist at the centre of the leaked emails controversy at the University of East Anglia hid problems with temperature data. Environment website editor James Randerson says the information is crucial for our understanding of the speed of global warming.
Ed Pilkington in New York looks at the reaction to President Barack Obama's $3.8tn budget plan to cut America's debt.
Head of business Dan Roberts explains why Britain's manufacturing sector is growing at its fastest rate for 15 years.
The National Trust says more people than ever have downloaded suggested walks from its website, with the most popular route the skyline of the city of Bath, from where Steven Morris stretches his legs.
The annual conference of the Soil Association this week will discuss ways of countering the perception that organic food is the preserve of posh people. The Observer's environment editor Juliette Jowit says they're calling it "organic elitism".
