Welcome to the Age of Modern Man

cheap Canada Goose Alien observers monitoring Earth for signs of intelligent life may well have choked on their intergalactic version of tea a few hundred thousand years ago when the first humans stumbled into focus, some 4 billion years after our planet’s own emergence. It was obvious that we were a bit special: we could make fire. cheap Canada Goose

As the global climate shifted at the end of the last ice age, some 10,000 canada-goosejacketsale years ago, humans put their fire making skills to great use, blazing a trail across continents to clear trees for grazing and agriculture, enabling societies to develop from hunter gatherers to rooted civilizations that produced complex technologies. We were even able to improve on our external sources of energy by expanding our range canada goose outlet online uk of fuels: rather than relying on what fuel grew in forests and the continual recycling of biomatter, we delved deep into the ground to extract fossil fuels made over geological timescales.

uk canada goose outlet Humans proved so clever and successful that we were able to overcome almost all the canada goose outlet 2015 environmental limitations that restricted other species to their ecological niches. The canada goose outlet legit Industrial Revolution began a march towards control of the planet and its resources, which, over the past 50 years, has become truly global. Our population soared from around 10,000 individuals at the start of the Holocene, 10,000 years ago, to 7 billion today. It is estimated that it will pass a colossal 9 billion by 2050. uk canada goose outlet

Canada Goose Parka So, any watching aliens are now looking at a radically changed Earth, on which the land surface, oceanic and atmospheric chemistry, ecology and biology have been transformed by humans. (Human) scientists say Earth has entered the Anthropocene epoch the Age of Man because we have become the dominant geological force on our planet. Canada Goose Parka

canada goose coats on sale We have changed the composition of the atmosphere which now contains more carbon dioxide molecules and the oceans, which are more canada goose victoria parka outlet acidic because more of that carbon dioxide is dissolving into them. And, because carbon dioxide is a greenhouse buy canada goose uk gas, we are changing the climate by melting glaciers and raising sea levels. Our atmospheric tinkering means that scientists think we have indefinitely delayed the next Ice Age. canada goose coats on sale

buy canada goose jacket We have changed the covering of the canada goose outlet nyc planet by chopping down trees (currently we fell 130,000 sq km per year, according to the Food and Agricultural Organization of the United Nations), rerouting rivers (we manage more than half of the planet’s available freshwater) and constructing highways and cities. More than half of the world population now lives in urban areas. At least 75% of the world’s land surface has been modified by humans, according to Erle Ellis, an ecologist at the University of Maryland. buy canada goose jacket

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canada goose clearance sale We are also reshaping the planet’s rocky material mining and other excavation shifts four times the amount moved naturally by glaciers and rivers. We are changing the numbers and abundance of other living canada goose outlet mall species believe we are at the start of the world sixth great extinction and the way they are distributed around our planet, by introducing invasive species and favouring some species over others. There are now more trees on farmland than in forests, for example, and if we were to weigh all of Earth land vertebrates, 90% of the total would be made up of humans and the animals we have domesticated, according to Prof Vaclav Smil in his book The Earth Biosphere: Evolution, Dynamics, and Change. canada goose clearance sale

Canada Goose Outlet Some of our changes are geologically profound deforestation and the elimination and distribution of species, for example, are scarring the rocks to leave telltale evidence of our human influence for geologists to discover many thousands of years into the future. Others are immediately obvious to anyone who has looked down at our continents from the window of a aircraft and seen the patchwork of farmland monocultures where there used to be wild savannah, or the islands we have grown out of the sea off Dubai, or the mountain tops we have removed in our quest for coal. But some are more subtle and harder to see directly the way we are changing the climate, or interfering in the nitrogen cycle, or selecting some metals but not others from the Earth’s crust, for example. Canada Goose Outlet

We are pretty resourceful and innovative, which is why we have managed to our planet to produce ever more food, to double human life expectancy in much of the world, and control freshwater sources and most other species. However, we are now faced with some planetary limitations that threaten our survival. If we are going to accommodate 9 billion humans in the next 35 years, and if those people are going to live in comfort, with enough food, water, canada goose outlet online store review energy and other important trappings of a liveable existence, then we are going to have to recognise these limitations and come up with innovative ways to overcome them.

In most cases, whether it is about ‘peak soil’, peak timber’, ‘peak silver’, ‘peak fish’, ‘peak oil’ or ‘peak freshwater’, the problem is that we are using the resource faster than it can be replenished through natural processes sometimes by a factor of thousands. The solution may canada goose outlet england be to assist the replenishment or to use less of the resource. Either way, the solution calls for a combination of clever engineering, technology and social tools.

I have spent the past few years visiting the canada goose outlet places, wildlife and people that are experiencing the impacts of many of our planetary changes, and I have seen some incredible examples of how we humans can use our ingenuity to overcome almost any challenge.

Canada Goose Jackets In this column, I am going to identify the planetary limitations currently threatening us, and find out what we are doing to solve the crisis. Welcome to the frontline of the Anthropocene Canada Goose Jackets.