Learn why the Earth is heating up and threatening the polar bears.

This title takes readers to Atlantic puffin habitats to understand why Atlantic puffins are at risk, what humans are doing to make matters worse, and the ways humans can help to save Atlantic puffins and ultimately, Earth. Sidebars, maps, and a glossary enhance readers' understanding of this topic. Additional features include a table of contents, an index, and a fact sheet. Aligned to Common Core Standards and correlated to state standards.

This title takes readers to polar bear habitats to understand why polar bears are at risk, what humans are doing to make matters worse, and the ways humans can help to save polar bears and ultimately, Earth. Sidebars, maps, and a glossary enhance readers' understanding of this topic. Additional features include a table of contents, an index, and a fact sheet. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library...

"This title takes readers to musk ox habitats to understand why musk oxen are at risk, what humans are doing to make matters worse, and the ways humans can help to save musk oxen and ultimately, Earth. Sidebars, maps, and a glossary enhance readers' understanding of this topic. Additional features include a table of contents, an index, and a fact sheet."

"As the Earth's climate continues to warm, the permafrost melts, glaciers are receding and ice patches are shrinking. It is a unique time on our planet, one that has resulted in a treasury of preserved organic material (e.g., caribou droppings and human and animal remains) and inorganic artifacts (e.g., tools and clothing) is being revealed by the big melt, providing us with entirely new information about how people and animals lived up to several...