A toxic mix of soaring energy prices, mortgage rates and weak growth is about to hit Britain – and a generation already squeezed will pay the highest price, says James Moore T he week in economics began with a jolt. Energy prices are climbing , mortgage rates are rising, and the global backdrop is darkening fast amid escalating tensions in the Middle East . The International Energy Agency has warned that disruption in the Strait of Hormuz could trigger an energy shock worse than the 1973 oil