News Supply and demand: White rhinos at the Entabeni Safari Conservancy, Limpopo, South Africa

Gone are the days when a “Save the Rhino” advert was enough. Only about 25,000 rhinos are left in the wild, and thanks to poaching the species is critically endangered. Now, in an effort to drive down demand, conservationists are working on campaigns to understand what makes rhino horn consumers tick.

Windows: How to transform your property

Bespoke timber frames not only revitalise period properties– adding style and environmental credentials – but can turn sterile modern buildings into homes with real character, says Jimmy Lee Shreeve

Sanjay Guha: Why Coca-Cola’s commitment to water sustainability is the ‘real thing’

The stress on the world’s water resources is a grave concern. Experts, political decision-makers and leading businesses gathered in Istanbul this week to search for solutions.

Hunters under fire in battle to save polar bear from extinction

Summit to discuss limits on hunting as starvation hits numbers of Arctic predators

Shell rebuked for 'greenwash' over ad for polluting oil project

The Anglo-Dutch energy giant Shell misled the public about the green credentials of a vastly polluting oil project in Canada, in an attempt to assure consumers of its good environmental record, a media watchdog will rule today.

UK accused over greenhouse gases

Britain's CO2 emissions are increasing, contrary to government claims, according to two new reports.

G8 plans 50% reduction in greenhouse gases

G8 nations, papering over deep differences, said today they would work toward a target of at least halving global greenhouse gas emissions by 2050 but emphasised they would not be able to do it alone.

Rare rhino charges spy camera

The world's rarest rhino has been captured on video attacking a camera set up in an Indonesian jungle to study its habits.

An epidemic of extinctions: Decimation of life on earth

Species are dying out at a rate not seen since the demise of the dinosaurs, according to a report published today – and human behaviour is to blame. Emily Dugan counts the cost

Tolkiens threaten to halt 'Rings' films in row over takings

The epic legal battles over profits from The Lord of the Rings movie trilogy long ago eclipsed anything raging on Middle Earth, but New Line Cinema, the films' producer, has just got sight of its most formidable foe to date: the family of J R R Tolkien himself.

Extinction fear as mystery disease kills India's rare river crocodiles

Almost every day, park rangers in India are discovering the bodies of gharials, an extremely rare river crocodile which appears to have fallen victim to a mysterious disease that is puzzling the experts.

Newcastle 40 Sale 25: Newcastle on the ascent after Tait and Flood secure supremacy

Mathew Tait started this marvellously dramatic match and Toby Flood completed it despite an appalling performance by the referee, Martin Fox, who awarded three times as many penalties to Sale as to Newcastle. Although Sale were unable to take advantage - they converted one of four tries and missed with five penalties - it did nothing to spoil a terrific contest. Four tries a piece.

High-definition films: the battle for our screens

The big names in entertainment are battling to bring us high-definition films. As rival discs go on sale, Elisa Bray investigates why both sides could lose

Apple in talks with Hollywood over film downloads for iTunes

Apple's chairman Steve Jobs is heading for another showdown with the media industry over plans to start selling film downloads at the company's iTunes online store.

Moscow 1941 by Rodric Braithwaite

How Stalin inspired Muscovites in the darkest days of battle with Hitler
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Independent Travel
Pompeii, Capri & the Bay of Naples
Seven Cities of Italy
Burgundy, the River Rhone & Provence
Prague, Budapest and Vienna
Lake Garda
Minoan Crete and Santorini
Prices correct as of 1 May 2015
Fishing for votes with Nigel Farage: The Ukip leader shows how he can work an audience as he casts his line to the disaffected of Grimsby

Fishing is on Nigel Farage's mind

Ukip leader casts a line to the disaffected
Who is bombing whom in the Middle East? It's amazing they don't all hit each other

Who is bombing whom in the Middle East?

Robert Fisk untangles the countries and factions
China's influence on fashion: At the top of the game both creatively and commercially

China's influence on fashion

At the top of the game both creatively and commercially
Lord O’Donnell: Former cabinet secretary on the election and life away from the levers of power

The man known as GOD has a reputation for getting the job done

Lord O'Donnell's three principles of rule
Rainbow shades: It's all bright on the night

Rainbow shades

It's all bright on the night
'It was first time I had ever tasted chocolate. I kept a piece, and when Amsterdam was liberated, I gave it to the first Allied soldier I saw'

Bread from heaven

Dutch survivors thank RAF for World War II drop that saved millions
Britain will be 'run for the wealthy and powerful' if Tories retain power - Labour

How 'the Axe' helped Labour

UK will be 'run for the wealthy and powerful' if Tories retain power
Rare and exclusive video shows the horrific price paid by activists for challenging the rule of jihadist extremists in Syria

The price to be paid for challenging the rule of extremists

A revolution now 'consuming its own children'
Welcome to the world of Megagames

Welcome to the world of Megagames

300 players take part in Watch the Skies! board game in London
'Nymphomaniac' actress reveals what it was really like to star in one of the most explicit films ever

Charlotte Gainsbourg on 'Nymphomaniac'

Starring in one of the most explicit films ever
Robert Fisk in Abu Dhabi: The Emirates' out-of-sight migrant workers helping to build the dream projects of its rulers

Robert Fisk in Abu Dhabi

The Emirates' out-of-sight migrant workers helping to build the dream projects of its rulers
Vince Cable interview: Charging fees for employment tribunals was 'a very bad move'

Vince Cable exclusive interview

Charging fees for employment tribunals was 'a very bad move'
Iwan Rheon interview: Game of Thrones star returns to his Welsh roots to record debut album

Iwan Rheon is returning to his Welsh roots

Rheon is best known for his role as the Bastard of Bolton. It's gruelling playing a sadistic torturer, he tells Craig McLean, but it hasn't stopped him recording an album of Welsh psychedelia
Russell Brand's interview with Ed Miliband has got everyone talking about The Trews

Everyone is talking about The Trews

Russell Brand's 'true news' videos attract millions of viewers. But today's 'Milibrand' interview introduced his resolutely amateurish style to a whole new crowd
Morne Hardenberg interview: Cameraman for BBC's upcoming show Shark on filming the ocean's most dangerous predator

It's time for my close-up

Meet the man who films great whites for a living