by taking account of all the environmental impacts in a product's life cycle, one avoids suboptimisation, i.e. modifications resulting in environmental improvements in one phase of the product's life, e.g. production, leading to increased environmental impacts in another phase of the life cycle, e.g. disposal, and the environmental work can be addressed to those phases in the product's life cycle in which the greatest environmental improvements can be achieved.

How would the previous sentence be correctly capitalized?
Answer: By taking account of all the environmental impacts in a product's life cycle, one avoids suboptimisation, i.e. modifications resulting in environmental improvements in one phase of the product's life, e.g. production, leading to increased environmental impacts in another phase of the life cycle, e.g. disposal, and the environmental work can be addressed to those phases in the product's life cycle in which the greatest environmental improvements can be achieved.
what you need to know:

How would the previous sentence be correctly capitalized?
Answer: What you need to know:
there is no time limit to your needs, as in reality time does not exist as you know it. i send my love always.

How would the previous sentence be correctly capitalized?
Answer: There is no time limit to your needs, as in reality time does not exist as you know it. I send my Love always.
stop the pumping and incubate the moc statically for 3.5 hr at 37 c and 5% co2.

How would the previous sentence be correctly capitalized?
Answer: Stop the pumping and incubate the MOC statically for 3.5 hr at 37 C and 5% CO2.