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Grimple's Top 3

Grimple and the team have scoured the newspapers and online news outlets to bring you his top 3 green stories this week.

Check out our summarised accounts of those stories below:

q8wyvftebew2dwe.jpgTechnology - First computer made of carbon nanotubes is unveiled

The first computer built entirely with carbon nanotubes has been unveiled, opening the door to a new generation of digital devices.

"Cedric" is only a basic prototype but could be developed into a machine which is smaller, faster and more efficient than today's silicon models.

Nanotubes have long been touted as the heir to silicon's throne, but building a working computer has proven awkward.

Cedric is the most complex carbon-based electronic system yet realised.

It is not a super computer at the moment, by any means. It can only count to 32 at the moment, but in principal it could count to 32 million!  So perhaps it’s the end for silicon chips.

Nature - Cuckoo finch fools host with multiple egg

Cuckoo finches lay multiple eggs in the nests of other birds to make it harder to detect the 'imposters', researchers have found.

The name cuckoo is common to many parasitic bird species that rely upon others to raise their young.

African tawny-flanked prinias are the targets of cuckoo finches in southern Zambia.

Prinias' egg colours vary widely but by laying multiple eggs in a nest, cuckoo finches reduce the risk of rejection.

The female African tawny-flanked prinia, a species of warbler, lays eggs in a wide spectrum of colours in an effort to fool cuckoo finches.

Environment - IPCC climate report: humans 'dominant cause' of warming

A landmark report says scientists are 95% certain that humans are the "dominant cause" of global warming since the 1950s.

The report by the UN's climate panel details the physical evidence behind climate change.

On the ground, in the air, in the oceans, global warming is "unequivocal", it explained.

It adds that a pause in warming over the past 15 years is too short to reflect long-term trends.

The panel warns that continued emissions of greenhouse gases will cause further warming and changes in all aspects of the climate system.

To contain these changes will require "substantial and sustained reductions of greenhouse gas emissions".

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