Sergio Gabrielli, CEO of Petrobras (a Brazilian multinational energy company headquartered in Rio de Janeiro), says global oil production (including biofuels) will peak in 2010 due to oil capacity additions from new projects being unable to offset world oil decline rates.

Gabrielli points out in his presentation that the world will need to produce oil from new sources equivalent to one Saudi Arabia every two years to offset future world oil decline rates – which he sees at about 5% per year.

Finding and bringing to production the needed magnitudes of new oil is simply not going to happen. Even managing to maintain historically observed decline rates may prove to be a challenge. Take Nigeria, for example. As the world teeters at the edge of economic and political collapse, Nigeria seems to be going over the edge. Nigeria, which in 2008 produced over two million barrels of sweet crude a day and today provides 9% of U.S. oil imports, could vanish as an oil exporter, virtually overnight. Despite its enormous reserves, Venezuela is looking none too stable as a producer and exporter, either.

Chris Nelder takes a close look at Mexico, Venezuela, and Saudi Arabia and warns the oil export crisis has arrived – we just haven’t felt it yet:

[W]hen oil prices rise again, the pain will be far greater for the U.S. than it is for our top suppliers. Next time, the spear of declining oil exports will puncture a lung.

If the gap between demand and supply shown in the chart above cannot be filled with new supply, the only alternative is for prices to increase to reduce demand to equal supply: “demand destruction.”  That means economic shrinkage rather than growth, and a consequent financial crisis of epic proportions. Consequently we are going to find it harder to extract other energy and mineral resources. As George Mobus points out in a post at The Oil Drum, our net energy is already in decline and that is at the root of the global economic problems we are seeing. You cannot have a growing economy when the basis of all economic wealth production is in decline.

The economic tremblings we’ve seen over the last couple of years may prove to be mere foreshocks. No matter how many trillions we throw at the problem, all the king’s horses and all the king’s men won’t be able to put Humpty Dumpty back together again.

Rather than trying to save the irretrievably lost, we’ll have to accommodate ourselves to the new reality:

We can only start simplifying our societies and giving up the many discretionary expenditures of energy that we currently enjoy without much thought. We can learn to once again live on real-time solar influx via our food raising systems. And even then we are talking about an ability to support only a small fraction of the current population. Ironically the simplification of society involves the increasing complexity of individual lives. What this means in practice is that each individual must start to become more of a generalist in terms of the functions that support life. Everyone will have to become a food grower! Believe it or not that isn’t simple! Knowing how to grow your own nutrients is actually quite complicated and will demand a whole new set of cognitive skills.

For the environment, peak oil and economic collapse offers a glimmer of hope. For example, oil accounts for 43% of our CO2 emissions from energy use. Consequent economic collapse will mean that a lot of coal plants in the works will never get built, and maybe we’ll even see existing plants begin to wither away.