The Trans-Alaska Pipeline: Lessons for the Keystone XL Pipeline Debate. Joel Griffith is a research associate for the chief economist at The... Citing various environmental and economic objections, in April, the Obama Administration again delayed construction of the Keystone XL Pipeline, this time until at least early 2015.
Stretch marks are often associated with pregnancy, which is why they are more common in women, but they can appear whenever your body is going through rapid changes, such as during puberty or times of great weight loss or gain.
What causes stretch marks? Stretch marks are caused when the skin rapidly stretches as a result of sudden growth or weight gain. The stretching causes the middle layer of skin (dermis) to tear, allowing the deeper skin layers to show through, forming stretch marks. The dermis contains strong, inter-connected fibres that allow your skin to stretch as your body grows.