Here is a look at some of the transportation headlines gathered by us and the Metro Library. The full list of headlines is posted on the Library’s Headlines blog, which you can also access via email subscription or RSS feed.

State of the climate (it’s hot) — June Analysis (NOAA)

You’ve probably heard by now that the the past 12 months in the United States (through June) were the warmest on average since records have been maintained. Here’s an excellent map from the National Oceanic and Atmospheric Administration showing the latest climate news. Worried about global warming? Take public transit — on average, it emits fewer greenhouse gases per mile than cars with single occupants.

Expo Line ridership up 50 percent (Curbed L.A.)

The Culver City station didn’t open until June 20 but average weekday ridership last month was 16,659, a big increase from the about 11,000 per day in May.

What New York City can learn from Los Angeles about the transit biz (New York Capital)

The big suggestions: get politicians behind transit as they are here, improve marketing and outreach and build coalitions with those who should also support transit such as developers, unions and museums. Of course, the Big Apple and L.A. are in very different situations, as the writer points out — L.A. is in expansion mode and New York is mostly in maintenance mode. Smart post.