Reinventing two wheels: Bike-safety technology is getting as technical as a Dave Brailsford team-talk

But will a new array of gadgets really make a difference on the busy city streets? Will Coldwell meets the inventors and the experts.

Paws for thought: Gary Downie, founder of Streetkleen, isn’t one to shy away from dog mess

Fido strikes gold with Britain’s most noxious biofuel: dog excrement

Scourge of the nation’s pavements is to be turned into electricity

Ministers 'not totally committed' on carbon

A parliamentary advisory committee has accused the Government of being only "half-committed" to low-carbon energy generation, warning that the UK is likely to miss emissions reduction targets as a result.

Fracking 'unlikely to give UK cheap gas', report says

Cross-party group pours cold water on Osborne's hopes shale gas will solve energy problems
Jag's Vauxhall Ampera gives excellent fuel economy and low emissions

Motoring: Everton's Phil Jagielka scores a nice little green number

What sort of tasteless motor would you expect a top footballer to be cruising around in? A camouflage Bentley Continental GT like Mario Balotelli maybe, or perhaps a gold-plated Cadillac Escalade like El-Hadji Diouf? One thing is certain; you wouldn’t expect a top-flight star to be seen dead pootling around in an ultra-low emissions Vauxhall Ampera electric car.

1.2m Chinese killed by air pollution in 2010

Air pollution contributed to the deaths of 1.2 million people in China in 2010, according to data presented at a summit in Beijing this week.

Costly renewable energy 'will damage UK's economy'

The energy Bill will be slammed this week by a group of business owners and consumer groups as "absurd" and potentially leading to the UK "sleepwalking into blackouts".

Change of gear: Confessions of a cycling snob

Simon Usborne used to be happy in an old pair of jeans on a clapped-out racer. Now, only the best (and priciest) kit will do...

The eco-home of Charlie Hague and Megan Williams

Earmarked for demolition: eco-home which doesn’t have ‘rural character’

With its higgledy-piggledy walls and turf roof it looks like the cosy home of a friendly hobbit. But an eco-dwelling in rural Pembrokeshire could become a test of the Welsh Government's grand designs on sustainable living.

Earth Hour 'switch-off' darkens monuments around globe

The seventh annual Earth Hour saw many parts of the world plunged into darkness for an hour yesterday evening to mark environmental concern over climate change and fossil fuel emissions.

Return to the trees: growing electricity

Every form of generation has its supporters and detractors, it seems. Tom Bawden looks at Britain's biomass generators and what the future holds
The Cuadrilla Resources shale fracking facility near Blackpool

Budget 2013: Energy - Cash for fracking: George Osborne's offer to local communities

Local communities whose lives are disrupted by the coming new industry of fracking – the extraction of shale gas – may be compensated with substantial financial grants, Mr Osborne indicated.

Will Coldwell and a Bamboo bicycle

Build your own bike with the Bamboo Bicycle Club

A wooden bike you have to build yourself? Will Coldwell signs up with the Bamboo Bicycle Club

Britain opposes EU pesticide ban on neonicotinoid pesticides blamed for bee deaths around the world.

Extraordinary steps were taken by the British Government last night to head off a proposed EU ban on neonicotinoid pesticides, which have been widely blamed for bee deaths around the world.

The Department for Environment, Food and Rural Affairs (Defra) says it is already moving to curb the overcapacity threat for incinerators

UK incinerator plans? They're just rubbish

As garbage-burning plants proliferate, Britain could end up with too little waste to put in them

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Day In a Page

'I’ll tell you what I would not serve - lamb and potatoes': US ambassador hits out at stodgy British food served at diplomatic dinners

'I’ll tell you what I would not serve - lamb and potatoes'

US ambassador hits out at stodgy British food
Radio Times female powerlist: A 'revolution' in TV gender roles

A 'revolution' in TV gender roles

Inside the Radio Times female powerlist
Endgame: James Frey's literary treasure hunt

James Frey's literary treasure hunt

Riddling trilogy could net you $3m
Fitbit: Because the tingle feels so good

Fitbit: Because the tingle feels so good

What David Sedaris learnt about the world from his fitness tracker
Saudis risk new Muslim division with proposal to move Mohamed’s tomb

Saudis risk new Muslim division with proposal to move Mohamed’s tomb

Second-holiest site in Islam attracts millions of pilgrims each year
Alexander Fury: The designer names to look for at fashion week this season

The big names to look for this fashion week

This week, designers begin to show their spring 2015 collections in New York
Will Self: 'I like Orwell's writing as much as the next talented mediocrity'

'I like Orwell's writing as much as the next talented mediocrity'

Will Self takes aim at Orwell's rules for writing plain English
Meet Afghanistan's middle-class paint-ballers

Meet Afghanistan's middle-class paint-ballers

Toy guns proving a popular diversion in a country flooded with the real thing
Al Pacino wows Venice

Al Pacino wows Venice

Ham among the brilliance as actor premieres two films at festival
Neil Lawson Baker interview: ‘I’ve gained so much from art. It’s only right to give something back’.

Neil Lawson Baker interview

‘I’ve gained so much from art. It’s only right to give something back’.
The other Mugabe who is lining up for the Zimbabwean presidency

The other Mugabe who is lining up for the Zimbabwean presidency

Wife of President Robert Mugabe appears to have her sights set on succeeding her husband
The model of a gadget launch: Cultivate an atmosphere of mystery and excitement to sell stuff people didn't realise they needed

The model for a gadget launch

Cultivate an atmosphere of mystery and excitement to sell stuff people didn't realise they needed
Alice Roberts: She's done pretty well, for a boffin without a beard

She's done pretty well, for a boffin without a beard

Alice Roberts talks about her new book on evolution - and why her early TV work drew flak from (mostly male) colleagues
Get well soon, Joan Rivers - an inspiration, whether she likes it or not

Get well soon, Joan Rivers

She is awful. But she's also wonderful, not in spite of but because of the fact she's forever saying appalling things, argues Ellen E Jones
Doctor Who Into the Dalek review: A classic sci-fi adventure with all the spectacle of a blockbuster

A fresh take on an old foe

Doctor Who Into the Dalek more than compensated for last week's nonsensical offering