After all, were it not for the 19th-century monarch, we might not celebrate Christmas with a well-appointed fir tree. Though people across the globe had been decorating temples and domestic ...

In this region, three sample plots of 20 m × 20 m were set up. From each plot, three healthy E. ulmoides (approximately 15 years old trees) were chosen, and samples of their leaves and roots were ...

What is the plan to stop deforestation? Forests absorb vast amounts of carbon dioxide (CO2) - a major contributor to global warming - so cutting down trees can have a big impact on climate change.

In most games, this is represented as a skill tree, which allows the player to allocate points to increasingly potent abilities and upgrades as they progress through the game. It's a simple way to ...