Solstice — David Hewson

With the new millenium's arrival, the climate on Earth is getting progressively hotter, a phenomenon that is driving the population to near mass hysteria. For a man and a woman drawn into the upper echelons of a worldwide scientific search, the apparent reason for the changes is staggering, having nothing to do with global warming or any natural phenomenon. The sun has turned deadly because a government built a fantastic weapon. Now it has fallen into the wrong hands...and the burning has just begun.