It is difficult to overstate how dependent we humans are on the resources geology – rocks – provide. It was rock that first provided prehistoric people with shelter and with the raw materials for their tools and weapons, jewellery and pots. Stones built their monuments and the tombs for their dead. Making fire is one of the things that distinguished us humans from animals – we struck two rocks to take that evolutionary step. Our ancestors’ connection with the landscape and its rocks was deep and all-pervasive.

They recognised the hardness and sharp edges of flint, chert and quartz for cutting tools. The durability of hard rocks for hammers and axes. Stones with the right roughness were used for milling grain or sharpening tools. Rocks with layers were skilfully split into slabs and panels. Clay was used everywhere to make pottery.

Local ores were prospected, mined and smelted and then turned into weapons, utensils and ornaments. Coal and peat were exploited as fuels for homes and industry. Rocks permeated early societies’ rituals and aesthetics: white gypsum on henges, ochre and hematite as pigments. The fact that these stones were traded so widely and valued so highly underlines their esteem.

It’s tempting to think humans are less dependent on rocks today but we are not, we just use far more of them differently. From the environmental pariahs: coal, oil and gas; to the steel, copper and glass in our buildings; crushed rock, sand and gravel and gypsum in our infrastructure; limestone in toothpaste; salt in food; and barium in medicines. Without these and many others, especially the critical and rare minerals we are using more of in our digital devices, our lives would be a lot less civilised. We just have to find ways of using the Earth’s limited resources much more responsibly.

This second episode explores those northern rocks that are the domain of palaeontologists – rocks that contain fossils. These remains of lives long ago from sea shells to dinosaurs are one of the three aspects of geology that - along with earthquakes and volcanoes - excite the general public more than any others. How many geologists were seduced into the science by their fascination with these traces of ancient life.

This first episode of Series two - called a restless north - takes a look at how dynamic our land has been (and still is!). At least once or twice a year we are reminded of the awesome but terrifying power of the planet by catastrophic earthquakes occurring around the globe. Earthquakes happen here too – but on a more subdued level. But we have evidence in the north that they were once rather more assertive. How our rocks have been bent, broken and moved is the challenge of structural geologists, they are the ones who try to untangle this super complex earth size natural rubik's cube

Part two of this short geo-fiction story looks forward 40 years and 100,000 years. It may be a speculative look into our future but it draws nonetheless on forensic climate projections and impacts which have been generated by reputable scientists. Reading the story of the Earth through its rocks has been likened to reading a book with 90% of its pages missing. An incredible tale and fertile ground for the imagination for sure. But everything in this short story is based on sound scientific, archaeological and historical evidence.

Reading the story of the Earth through its rocks has been likened to reading a book with 90% of its pages missing. An incredible tale and fertile ground for the imagination for sure. But everything in this two-part short story is based on sound scientific, archaeological and historical evidence. Part Two - the final two chapters of the story - may be a speculative look into our future four decades and 100,000 years ahead, but they draw nonetheless on forensic climate projections and impacts which have been generated by reputable scientists.

Its time to get to grips with how people and rocks connect. And first in ancient societies. So we will be occupying the overlap – more no-mans-land – between geology and archaeology. The two subjects - just like rocks and humans - are inextricably linked. Our ancient ancestors relationship with their natural landscape – that is its rocks – was intimate. Rocks and sediments provided them with shelter, water and tools. It influenced how they used the landscape – their settlements and defences and routeways. Rocks were the foundation of their beliefs and rituals.

Our tectonic plates continued their erratic waltz north. All the while billions of tonnes of sediments were deposited, turned to rock, tilted up here and there and then eroded away. 60 million years ago lava started to pour out of an enormous rift that was to become the Atlantic Ocean. North America and Europe have been drifting apart ever since. 2.6 million years ago the Earth‘s temperature began to fluctuate again; we cooled and then warmed, repeatedly – the Ice Age – and we are still in it. Ice caps extended to lower latitudes, glaciers grew and then retreated and as they did trees and plants recolonised the landscape. Humans emerged and began to exert their influence on the county, clearing forests and settling in the valleys – but that’s for next time

This episode starts with injection of molten rock across northern England a rock that is responsible for a huge chunk of our tourist economy. Then it takes a tour of hot deserts, evaporating salty seas, and finally our secret bit of every fossil hunters dream rock. On the way we’ll hear about plots to blow up a famous stone circle, dispose of nuclear waste, a mass global extinction and a more recent awful tragedy. Sounds dismal, but its really not!