This page demonstrates how data about slices can be represented compactly in tables and charts. The two tables below give information about land and gold respectively.
Land
The top part of this table divides the total surface area of land on Earth — 147,135,404 square kilometres — between 7.5 billion people, 10 billion people, and 12.5 billion people. For more information, see https://gaiageld.com/global-slice-land/. In it, the picture represents the area of land that each of the 10 billion would get, if placed around the Brandenburg Gate in Berlin. Click on the picture to enlarge it. The rows below the picture show the lengths of the sides of these squares, and the time it would take to walk round them at an average walking speed of 1.4 metres per second.
The bottom part of the table classifies land according to type of land cover, as measured by the Copernicus Land Cover Monitor, and shows the personal slice of each. The pie chart below it does the same, for the personal slice of 10 billion. See the link above for details.
| Between 7.5 billion | Between 10 billion | Between 12.5 billion | |
|---|---|---|---|
| Total area, sq km | 0.01962 | 0.01471 | 0.01177 |
| Total area, ha | 1.962 | 1.471 | 1.177 |
| As a picture |  | ||
| Width of one side if square, m | 139.0 | 121.0 | 108.0 |
| Time needed to walk round the square, min | 6.7 | 5.8 | 5.2 |
| Forests area, ha | 0.726 | 0.545 | 0.436 |
| Herbaceous vegetation area, ha | 0.415 | 0.311 | 0.249 |
| Bare or sparse vegetation area, ha | 0.301 | 0.226 | 0.180 |
| Cropland area, ha | 0.217 | 0.163 | 0.130 |
| Shrubland area, ha | 0.166 | 0.124 | 0.100 |
| Permanent water bodies area, ha | 0.040 | 0.030 | 0.024 |
| Herbaceous wetland area, ha | 0.030 | 0.023 | 0.018 |
| Snow and ice area, ha | 0.028 | 0.021 | 0.017 |
| Moss and lichen area, ha | 0.021 | 0.016 | 0.012 |
| Built-up area, ha | 0.017 | 0.013 | 0.010 |
Gold
The top part of this table divides the total mass of gold mined in 2017 on Earth — 3,359,775 kilograms — between 7.5 billion people, 10 billion people, and 12.5 billion people. For more information, see https://gaiageld.com/global-slice-gold/.
The bottom part of the table classifies gold demand in 2017 by usage. The table shows the personal slice of each. See the link above for details. The pie chart below it does the same, for the personal slice of 10 billion.
| Between 7.5 billion | Between 10 billion | Between 12.5 billion | |
|---|---|---|---|
| Amount mined in 2017, g | 0.448 | 0.336 | 0.269 |
| Jewellery, g | 0.285 | 0.214 | 0.171 |
| Technology: electronics, g | 0.035 | 0.027 | 0.021 |
| Technology: other industrial, g | 0.007 | 0.005 | 0.004 |
| Technology: dentistry, g | 0.002 | 0.002 | 0.001 |
| Investment: bar and coin: physical bar demand, g | 0.103 | 0.077 | 0.062 |
| Investment: bar and coin: official coin, g | 0.025 | 0.019 | 0.015 |
| Investment: bar and coin: medals and imitation coin, g | 0.010 | 0.007 | 0.006 |
| Investment: ETFs and similar products, g | 0.027 | 0.020 | 0.016 |
| Central banks and other institutions, g | 0.050 | 0.037 | 0.030 |
