Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

Global Temperatures Warmest in 4,000 Years: Report

Temperatures worldwide are warmer than at any time in the last 4,000 years and in the coming decades they could rise above levels that haven't occurred since before the last ice age, according to a new report published Friday in the journal Science.

The scientists said that even if the human activity-related global temperature increase projected for later this century is at the low end of estimates, the Earth will still be at least as warm as, or likely warmer than, it was during the warmest periods of the current geological era, The New York Timesreported.

That era, called the Holocene, began about 12,000 years ago and brought a moderate climate that scientists believe led to the rise of human civilization about 8,000 years ago and continues to sustain it.

For this new report, scientists developed the most meticulous reconstruction yet of global temperatures over the past 11,300 years.

This is "another important achievement and significant result as we continue to refine our knowledge and understanding of climate change," Michael Mann, a researcher at Pennsylvania State University, told The Times.


Bumble Bee Foods Recalls Tuna Products

Certain batches of Bumble Bee 5-ounce Chunk White Albacore and Chunk Light Tuna products are being recalled because the cans have loose seals that could lead to contamination or spoilage, the company says.

"There have been no consumer reports of illnesses attributed to these products, but because we've identified an issue with seal tightness, we're voluntarily recalling products to ensure the highest margin of safety and quality," Steve Mavity, senior vice president of technical services and corporate quality assurance, said in a Bumble Bee Foods news release.

The products were distributed to stores nationwide between Jan. 17 and Feb. 28, 2013. Consumers who bought the products should throw them in the garbage, the company said.

For full details about the products included in this recall, head to the FDA.