Money can buy you happiness if you spend it on being nice to other people.

It is disappointing that the author chose "the latest iPhone" as the paradigmatic example of what you would want for yourself.

The biggest mass extinction in Earth's history appears to have been caused by greenhouse gases.

In that case, they greenhouse gases seem to have been produced by magma hitting underground deposits of carbonaceous rocks and coal, rather than by human activity (since there were no humans then).

The Keystone XL pipeline may be canceled due to lack of investors.

The low price of oil discourages investment in future oil extraction. That is good. However, it also tends to encourage more use of oil, which is bad. Whether the overall effect in good or bad depends on what other factors might tend to keep the demand for oil low.

Why is the oil price so low nowadays? Can anyone tell me?

Plastic straws are a significant contribution to global waste.

Young people often keep an article of clothing for mere weeks before throwing it in the trash. What a wasteful practice.

There's nothing wrong with recycling fabrics if someday we develop the technology to really do it. However, it is easy to recycle garments: just sell them to a used clothing store, or give them to a place that will pass them on to poor people.

What excuse could there be for failing to do this?