Across the northern hemisphere the deciduous forests are changing.

整个北半，可以看到落叶林不断变化。

This phenomenon occurs above the magnetic poles in the Northern and Southern hemisphere.

这种现象发生北半和南半的磁极上方。

Meet Steve, a rare spectacle that hovers over the horizon in the Northern hemisphere.

来看看史蒂夫，这是北半地平线上罕见的奇观。

Arctic terns begin their migration in the Northern hemisphere in the summer, which is breeding season.

北极燕鸥夏季开始北半迁徙，这是繁殖季节。

And it correlated almost exactly with the last period of prolonged cold to strike the Northern hemisphere.

北半也这段期间进入了漫长的寒冷期。

" Without exception, positive temperature anomalies are expected over all land areas in the Northern and Southern Hemisphere."

“毫无例外，预计北半和南半所有陆地地区都将出现正温度异常。”

Global cooling was experienced by the entire northern hemisphere.

整个北半都经历了全降温。

Within the northern hemisphere, now sing without a flaw.

北半，现和我一起唱，不要唱错哦。

In the southern hemisphere, they rotate clockwise and in the northern hemisphere, they rotate anticlockwise.

它们南半顺时针，北半则逆时针。

Some think there was an ocean in the northern hemisphere.

有些人认为火星的北半有海洋。

They continued transatlantic service in the northern Hemisphere's summer months.

他们北半的夏季继续提供跨大西洋服务。

The Summer Solstice is the longest day in the northern hemisphere.

夏至是北半日照时间最长的一天。

The plant-eaters were late comers in the Northern Hemisphere, he said.

植食性恐龙是后来到北半的，他这样说道。

In the northern hemisphere, July is off to a record-breaking start.

北半，七月是一个打破纪录的开始。

It's fall, ya'll at least it is in the Northern Hemisphere.

现是秋天了，至少北半是秋天。

This means the Equator would be a significant geographical barrier between the Northern hemisphere and what remains of the Southern hemisphere.

这意味着赤道将成为北半和南半残余地区间的重要地理屏障。

It is the day with the most daylight in the Northern Hemisphere.

这是北半白昼时间最长的一天。

Record-breaking heat has hit more highs today all around the Northern Hemisphere.

今天，北半各地的高温已经打破纪录，创下新高。

The Northern Hemisphere has just had its hottest summer on record.

北半刚刚经历了有记录以来最热的夏天。

The Northern Hemisphere is the part of the world north of the equator.

北半是地赤道以北的部分。