A limitation of green power generation is that wind farms and large-scale solar panels are easier to site in remote areas, leaving a challenge in taking energy to centres of population.
This leaves a challenge for characterisation, modelling, forecasting and management activities.
Although these different estimation methods and cohort studies [ 31, 32] indicate a 5 10%% risk reduction, the direct and long-term impacts of weight loss on breast cancer risk are still unclear, leaving a challenge for future research.
And so again, I leave with a challenge to innovate.
The very clarity of this unambiguous UN report leaves a gaping challenge for a world that tries to define its relationships according to the rule of law.
IPCC commissioner Cindy Butts said: "The IPCC supported the view of Mr Baker's family that the officer should have been suspended to prevent his retirement, but the force declined our repeated requests to do so, leaving a legal challenge as the only option available.
Wigan coach Michael Maguire might have bowed out a beaten man on Saturday night, but he has still left a tough challenge for his successor to emulate.
Gove's critics have laid down their challenge to leave a lasting and valuable legacy.
Two months shy of 30 years in the House, I leave a chamber in which we challenge one another's legitimacy, not one another's ideas.
Marcos Rojo left an aerial challenge the worst for wear, grimacing in horrifying agony, clutching his shoulder.
