Anytime you see an inflection point (a sudden change in the direction or slope of aline) in agraph that amalgamates the decisions and actions of hundreds of millions of people, you are witnessing the impact of government policies.
Such rates of Greenland ice loss were barely larger than the margin of error in their readings, making it difficult to discern any difference between a supposed loss curve on agraph from a straight line.
Plotted as agraph, the line representing the price of a barrel of oil price in gold has crossed the horizontal line representing the average price (0.0735 ounces of gold) 27 times.
You might further note and recall from the above Funds From Operations and price correlated graph this was also a time when the price was touching the pink income valuation line.