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Hello there.

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In this series of videos,

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we're going to talk about

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renewable energies,
and renewable technologies and the need

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for these renewable technologies
in our society as it is today.

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Behind me you will see
that is actually wind a turbine.

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It's what actually sits
on the top of the pylon

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inside an nacelle on the front end.

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blades, gearboxes, generators,
that's ll it is.

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Now we've got to this point

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in time where the balance of

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emissions from using fossil fuels

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is getting to the point
where it's a tipping point.

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Whether we are there yet or not,
we don't know.

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Some schools of thought say we are.

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We've gone beyond some schools of thought
say there is time for us

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to turn the clock back and stop it.

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Now renewable energies are here

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to replace
fossil fuels, fossil fuels, coal,

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oil, natural
gas, coal formed 600 million years

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ago, in the Carboniferous period dead
plant matter

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laid down compressed pressure.

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Heat turns it to coal.

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It's the carbon that those plants

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caught 600 - 65 million years ago,

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locked away nice and safe.

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Then we've also got oil and natural gas.

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Oil and natural gas come from the dead
animal matter.

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Plankton, small animals in the sea,

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died fell to the seabed covered
in sediment pressures.

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Temperatures again
turn them into oil and natural gas

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again, locked away deep

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in the Earth's crust.

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Now, in the 1800's
the industrial revolution hit.

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We needed lots and lots of fossil fuels
to power the industrial revolution.

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And this is when it started coal

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coming to the surface burning

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emitting carbon dioxide

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and other greenhouse gases
into the atmosphere.

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Now, when you burn a hydrocarbon,
which is what fossil fuels are, coal

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and oil and gas in the presence of oxygen,
you get water produced, energy released

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and a great big chunk of carbon dioxide.

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Now, on a small scale,

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as it was in the industrial revolution,
it wasn't a problem.

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The population of the planet
was a lot smaller.

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The planet population at this moment,
time is consuming fossil fuels

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at a rate and releasing CO2 at a rate
that is unacceptable.

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This must must be addressed,
and this is where

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the need for renewable
technologies is on the forefront.

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Now there are many types of renewable

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technologies, in another video
we will go into some of those.

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And well, I'll talk about the way
they use energy

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well transform energy
into different forms of energy, we can use

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at this moment in time our reliance on
fossil fuels is still great.

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Cars, your heating in your homes.

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Electrical power stations
produce electricity by burning

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fossil fuels again
now in the developed world.

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That's fair comment.

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We can actually address this
in the developing world.

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Have we got a right to say
you cannot make the mistakes that we made?

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You must do this. You must do that.

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Can they afford to do it, again,
That will be dealt with later.

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But at the end of the day,
it must must must be realized.

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This cannot go on.

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There is a finite amount

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of fossil fuels,
but we won't run out of them before

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we put too much CO2 into the atmosphere
where we reach the tipping point.

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And if anybody knows anything
about the planetary system,

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Venus was very similar to our planet.

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A of billion years ago, and it went into
runaway greenhouse gas production,

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and it has now got an atmosphere
that is hot enough to melt lead

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and the pressures will crush you
if you stood on it.

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Venus is our sister planet

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we're heading that
way and it needs to stop.