During the day, the lamps store energy from the intense desert sunlight in batteries large enough to keep them lit from dusk to dawn.

FORBES: Magazine Article

Nutrient deficiencies, especially of nitrogen, triggered more intense colour in maples as the trees attempted to lessen the effects of sunlight.

ECONOMIST: The science of autumn

The ideal species will be able to stand up to intense illumination (more light means faster photosynthesis) and heat (for the high levels of sunlight required will also warm things up).

ECONOMIST: Biofuels from algae: Craig's twist | The