"I assume we will have figured out a way to efficiently utilize solar energy and tied that to an efficient way to use nuclear energy in such a way that it doesn't pose a serious environmental issue"

In the quote, John Hickenlooper expresses optimism about future developments in energy innovations, especially concentrating on solar and atomic energy. Let's break down the parts of his declaration for a clearer interpretation.

Hickenlooper begins with "I presume", indicating a positive perspective that prepares for or hopes for a future where these developments have actually been understood. By utilizing the word "presume", he acknowledges that existing challenges exist, however there is an expectation or possibility of conquering them.

The phrase "we will have found out a method to effectively make use of solar power" suggests that while solar energy is currently a crucial element of renewable energy strategies, there is space for improvement in its effectiveness and utilization. This could involve technological advancements in solar panel performance, much better storage approaches, or more extensive adoption and combination into the power grid.

He then discusses tying this to "an efficient method to use nuclear energy", indicating a complementary relationship in between solar and atomic energy. The integration of these energy sources implies a well balanced energy mix that optimizes the strengths of both: solar's sustainable nature and nuclear's base-load power ability. Achieving such a synergy might possibly lead to a more steady and sustainable energy system.

The latter part of the quote, "in such a way that it does not pose a severe environmental concern", attends to the environmental issues associated with these energy sources. For solar, this might involve addressing land usage and material recycling difficulties. In the case of atomic energy, the concerns mostly focus on security, waste management, and the capacity for disastrous failures. Hickenlooper's vision recommends that future developments or regulatory structures may alleviate these issues to render both energy types environmentally and socially accountable.

In general, Hickenlooper speaks with a positive future where technological developments and thoughtful combination of solar and nuclear energy could cause a sustainable and environmentally friendly energy landscape.