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Science and that is the same physics, medicine, nature, or space, time, the brain, life, the universe.

This week, keep your wits about you as it's our Halloween special.

From ghost hunts to monster mythology, we're looking at the strange world of the paranormal.

Plus in the news this week, what dinosaurs and Zorro have in common are bats actually blind

and the science of a stratospheric send-off launching ashes into space.

I'm Isie Kreepy Clark and I'm Georgia menacing Mills and you're listening to the

Naked Scientists.

The Naked Scientists podcast is powered by UKfast.co.uk. The 2015 Paris Climate Agreement is the pledge to try and limit global temperature rise to 2 degrees

Celsius above pre-industrial levels. Emission reduction poses a significant

challenge for the countries involved, so perhaps replacing fossil fuel with biofuels,

which are renewable and emit less net carbon, may be part of the solution.

In a paper published this week, scientists have projected that sugarcane ethanol, which is a biofuel,

produced in Brazil alone could offset net emissions by more than 5%.

Katie Hayler spoke to author Steve Long, who is a crop sciences and plant biology professor

at the universities of Illinois in the US and Lancaster in the UK.

Sugar cane is almost the most productive crop in the world

so it produces a large amount of material.

Typically a field of sugar cane will produce up to about 100 tons of cane stem per hectare

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