Donald MacInnes: Leonardo DiCaprio climate speech at the UN this week was excellent

There were some glitzy touches to the start of the annual United Nations Climate Change Summit in New York on Wednesday.

United Nations Secretary General Ban Ki-Moon speaks at the UN Climate Summit

Climate Change Summit: World leaders reach fragile consensus on global warming

Just days after thousands marched for action, politicians declared their commitment to tackling the issue urgently. They were joined by one very notable celebrity activist

Brazilian President Dilma Rousseff addresses the Climate Summit, at United Nations headquarters

Climate Change summit: Brazil refuses to sign UN's pledge to slow deforestation

Environment Minister claims her government was 'not invited to be engaged in the preparation process'

John D Rockefeller on his 84th birthday in 1923; his wealth came from oil

Rockefellers go green: Rockefeller foundation divests funds in fossil fuel industries

American oil dynasty to pull all investment in fossil fuel industries on eve of global climate change summit, placing it as an unlikely champion of the push towards alternative energy sources

Demonstrators march towards Wall Street in New York last night, calling for action to curb the effects of global warming

UN climate summit starts in New York but the long-term forecast is cloudy

Leaders of China and India will be notable absences at the talks

Around 40,000 people marched in London including Emma Thompson and many marches were arranged around the world to demand urgent action on climate change

Climate change march: Investors pledge to take their money out of firms blamed for climate change

700 financial institutions with £30bn at their disposal join ‘dirty-energy divestment’ campaign

Lightning strikes over Poole Harbour during a thunderstorm

UK to face more extreme weather as climate change pushes temperatures up in the Arctic

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The People's Climate March in Delhi, India, yesterday

The People's Climate march: For 72 hours the world takes to the streets and tells leaders: 'Act now on climate change'

It promises to be an unparalleled demonstration of the world’s fury at its leaders’ continued failure to tackle climate change: an unprecedented statement by hundreds of thousands of people.

Forbes dam in New South Wales in 2006, during Australia’s 10-year drought

UK weather: Britain must be prepared for 'worst droughts in modern times'

Desalination, long-distance pipelines, imported supplies, and more efficient appliances in the home are among measures being considered to stop the country running dry. Kitty Knowles reports

The Eden Project of exotic ecosystem-domes in Cornwall and hopes to prompt a 'tipping point' in climate action

Rich philanthropists urged to invest in ‘saving civilisation’ by putting money into fighting global warming instead of other green causes

Climate change  has the capacity to overwhelm efforts in other areas

A sign asking politicians to help with the drought in California, where reservoirs are at record low levels and many fields have been left unplanted

No rain for decades: Stand by for the ‘megadroughts’, scientists warn

Parts of the world could face decades without rainfall because of global warming

Continued rail disruption certain without urgent action, says report

Infrastructure is too weak for extreme weather caused by climate change, transport review finds
The heavy rain that hit London and the South-east earlier this month is part of the cycle of climate change, say scientists

Government facing four challenges in bid to tackle climate change, think-tank claims

Experts call for Obama-style audit to assess damage of changing temperatures
The cruise ship Crystal Serenity, which conservationists say likely has a carbon footprint around triple that of a Boeing 747

Luxury cruise line accused of offering ‘environmental disaster tourism’ with high-carbon footprint Arctic voyage

Cruise passengers will pay upwards of £12,000 to see polar bears and humpback whales in their natural habitat – before it disappears

Owen Paterson is to deliver the annual lecture to the Global Warming Policy Foundation

Former Environment Secretary Owen Paterson to deliver keynote speech at climate-sceptic organisation's lecture

Spending on climate change work was slashed during Mr Paterson’s time running the Environment Department

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