; and (B) $175,000,000 for fiscal year 2019. (5) Dark energy and dark matter research As part of the program described in paragraph (1), the Director shall carry out research activities on the nature of dark energy and dark matter, which may include collaborations with the National Aeronautics and Space Administration or the National Science Foundation, or international collaborations. (6) International collaboration The Director, as practicable and in coordination with other appropriate Federal agencies as necessary, shall ensure the access of United States researchers to the most advanced accelerator facilities and research capabilities in the world, including the Large Hadron Collider. 7. Biological and environmental research (a) Program The Director shall carry out a program of basic research in the areas of biological systems science and environmental science relevant to the development of new energy technologies and to support Department missions in energy, environment, and national security. (b) Biological systems The Director shall carry out research and development activities in fundamental, structural, computational, and systems biology to increase systems-level understanding of the complex biological systems, which may include activities— (1) to accelerate breakthroughs and new knowledge that would enable the cost-effective, sustainable production of— (A) biomass-based liquid transportation fuels; (B) bioenergy; and (C) biobased materials; (2) to improve understanding of the global carbon cycle, including processes for removing carbon dioxide from the atmosphere, through photosynthesis and other biological processes, for sequestration and storage